• What is the WDM Code of practices (CoP)?

    The World Diamond Mark® has established a set of operating principles to reinforce confidence in the diamond supply chain.  All Authorised Diamond Dealers must comply with, and sign, the WDM Authorised Diamond Dealer® Code of Practices.  The Authorised Diamond Dealer Code of Practices is based on the World Federation of Diamond Bourses’ Code of Conduct, and follows its principles. The WDM Code of Practices must be signed by the participating company's CEO of the applying Authorised Diamond Dealer before accreditation by the World Diamond Mark.

  • What is the World Diamond Mark Authorised Diamond Dealer programme?

    The World Diamond Mark Authorised Diamond Dealer programme has a clear objective: to  help retail jewellers sell diamonds and diamond jewellery more successfully, at larger volumes and at better margins.

    Therefore, all our programmes are geared promoting those retail jewellers who have joined the programme and adhere to our code of conduct and principles. They carry the World Diamond Mark Authorised Diamond Dealer seal that represents the diamond industry’s mark of confidence to underpin the consumers' diamond and diamond jewellery buying decisions.

  • What is the Kimberley Process?

    The Kimberley Process started when Southern African diamond-producing states met in Kimberley, South Africa, in May 2000, to discuss ways to stop the trade in 'conflict diamonds' and ensure that diamond purchases were not financing violence by rebel movements and their allies seeking to undermine legitimate governments.

    In December 2000, the United Nations General Assembly adopted a landmark resolution supporting the creation of an international certification scheme for rough diamonds. By November 2002, negotiations between governments, the international diamond industry and civil society organisations resulted in the creation of the Kimberley Process Certification Scheme (KPCS) . The KPCS document sets out the requirements for controlling rough diamond production and trade. The KPCS entered into force in 2003, when participating countries started to implement its rules.

  • What is a natural versus a lab created diamond ?

    Natural diamonds were created in nature, deep in the earth over millions of years. They are among the rarest of all minerals. Lab-created gemstones are synthetically created by mimicking the conditions of extreme heat and pressure under which natural stones were created. They do not offer the rarity or unique personality that a natural diamond does. As a policy, WDM Authorised Diamond Dealers do not sell synthetic diamonds.
  • Can I see the difference between a natural fancy coloured diamond and a diamond that has been treated to induce colour? What should I be looking for?

    Usually, a professional jeweller is able to differentiate between a natural fancy coloured diamond and a treated coloured diamond. However, even with the untrained eye it is a good idea to examine a coloured diamond meticulously. Is the colour evenly spread all over the stone, both on the table, crown and pavilion? If so, it may very well be an artificially coloured stone. In natural fancy coloured diamonds, colour zoning typically occurs, with the colour varying in intensity on different parts of the diamond. Remember, fancy coloured diamonds are rare, VERY rare. Thus, if you’re offered a fancy coloured diamond at a discount price, chances are that it is treated coloured diamond.

  • Can a diamond’s colour grade be improved?

    Yes, various methods of enhancing a diamond’s colour grade have been developed. The best know methods are HPHT (high pressure high temperature). In addition, diamonds can be irradiated by a non-nuclear and harmless irradiation technology. Both treatments can result in very beautiful stones and can be offered at lower prices as they are categorised as ‘treated.’ Both HPHT and irridiation treatments are irreversible and permanent. In any case, when sold they must be accompanied by a disclosure statement.

  • What is "clarity enhancement?"

    Clarity enhancement refers to a process by which the clarity grade of a diamond is improved. Today almost any enhancement process that that is permanent needs to be disclosed by the seller when a stone is being sold. The most common clarity enhancement is fracture filling—in which minute amounts of a transparent filler material is used to seal surface-reaching cracks in the crystal. This is not a permanent treatment and makes such a diamond less desirable.
  • Carat weight, colour and clarity are graded in a diamond grading report. Cut is often not. Why?

    Most gemmological laboratories prefer not to grade cut, but they do generally provide a “poor”, “fair,” “good” or “excellent” description of the cut on the report. This is because unlike caratage, colour and clarity, there is still no agreed unit of measurement of cut, which can be can be accurately measured. For that reason, when it comes to cut they prefer to provide an educated assessment.

  • Are there fancy shapes looks big but have a relatively low weight?

    Yes there are. Typically, these are polished diamonds which are relatively shallow in depth, but have a larger than usual circumference. What this means is that when they are set, in the face up position that appear larger than, let us say, a round diamond of similar caratage. The drawback is they display less scintillation than a regularly cut stone, because there is less play of light within the crystal.
  • Do fancy shapes offer better clarity than rounds?

    Generally,the decision to cut a fancy shaped diamond is made because of the dimensions of the rough diamond from which it originates. From the cutter’s point of view, it generally is worthwhile to get as large and as high a quality polished stone as is possible from a piece of rough. However, if the rough stone is heavily included in one section, the cutter may choose to change the shape of the polished stone in order to preserve clarity. You only see the finished product, and it is a beautiful polished diamond.
  • Does a fancy shape cost more than a round diamond of similar size?

    Not necessarily. Sometimes, fancy shaped diamonds that are of comparable carat weight, size, clarity and colour may be slightly less expensive than round diamonds, depending on market demand. And the opposite could be the case. Remember this, though—to the degree that the fancy shaped diamonds increase your range of choice, select what is best for you. Sometimes you’ll even enjoy the benefit of a lower price.

  • Can diamonds break?

    Yes, they certainly can, although it is not common. While diamonds are the hardest of all natural minerals, they can chip or break if struck against another hard object.
  • Where are diamonds cut?

    The world’s largest and dominant diamond manufacturing center is India, where smaller diamonds are concentrated upon. Other centres include Botswana, China, Laos, the Philippines, Russia, South Africa, Sri Lanka, Thailand and Vietnam. In Israel, Belgium and the USA, production has been reduced significantly and these centres mostyly cut the larger diamonds, also in fancy shapes and fancy coloured diamonds of all sizes, as the latter catagory’s value is extremely high.

  • Are diamonds cut and polished by hand or machine?

    Most smaller diamonds—below 0.10 carats in size— are generally cut by hand in centres where labour costs are lower, with India being the most prominent example. Automatic and semi-automatic machinery is used in the production of larger-sized diamonds, mainly in Africa, China, Thailand and other asian countries. In Israel, Belgium and the USA, manufacturing has been reduced significantly and these centres mostyly cut the larger diamonds, also in fancy shapes and fancy coloured diamonds of all sizes, as the value of the latter category is extremely high. Sometimes, a diamond will be cut automatically, and a portion of its facets will be polished in the same way. The final stages of the process, though, will be executed manually. For technical reasons, many fancy shaped diamonds are still exclusively processed by hand.

  • What is the difference between cutting and polishing?

    Cutting and polishing are the two final stages of the diamond manufacturing process. In the cutting stage, the girdle of the diamond is cut, thus providing the circumference of the final product and deciding its shape and size. In the past, one diamond was cut with another, but today this process is most often done by means of a laser. Polishing involves the process during which the facets are placed on the stone.The facets are polished to a high level of brilliance.
  • What does the term total weight mean?

    Total weight refers to the aggregate weight of all the diamonds set in a piece of jeweller. For instance, if a ring is set with center stone of 0.70 carats and two side- stones of 0.15 carats each, the diamond content of the ring has a total weight of 1.00-carat.

  • How do I know whether the carat weight of diamond that is set in a jeweller piece is actually correct?

    It’s worth remembering that a jeweller's most precious property is his or her reputation. Nonetheless, many jewellers will provide documentation. Loose diamonds and diamonds used as a center stone in jeweller will often be accompanied by an independent gemmological grading report. Also, the jewelry can offer his or her customer an appraisal of all items purchased for insurance purposes. These independently prepared certificates will list the carat weight of the diamonds.

  • Can one estimate a diamond's weight just by looking at it face up?

    Depending on the shape of a diamond, an experienced jeweller can probably estimate the weight of the stone—or for, that matter, most coloured gemstones. There are size charts available for diamonds and coloured gemstones, and these can prove very helpful. However, if the setting holding the diamonds masks the depth of the stone, or its diameter, then the jeweller’s task is considerably more difficult, if not impossible.

  • How can diamonds of similar carat weight differ so greatly in cost?

    The price of a diamond is determined by the relative values of its four Cs—colour, clarity, cut and caratage. In other words, carat weight is only one component. Therefore, a diamond that weighs 0.78 carats, and has a good colour, a high clarity grade and a great cut or make, will cost considerable more—sometimes in excess of 50 percent—than a diamond of the very same weight, but with a lower colour, a lower clarity grade and a poor make.

  • Why is there such a significant price different between a 0.95-carat diamond and a 1.00- carat diamond of similar quality?

    Well, it turns out that sometimes size does count. In principal, because larger diamonds are rarer, they have a greater monetary value per carat. In other words, the value rises at a faster rate as it gets bigger in size. Or to put it in other words, a 0.95-carat stone is 5 percent smaller than 1.00-carat stone, but it is more than 5 percent lower in value. There is another factor. There is a magical quality to a 1.00-carat stone that boosts its value somewhat higher. This does not exist between a 1.01-carat diamond and 1.02-carat diamonds, but it does between 0.99-carat and 1.00-carat diamonds.
  • What is a diamond price list?

    Diamond price lists are used in the diamond wholesale trade to establish benchmark prices for loose polished diamonds. A number of price lists are available, some of which are more widely used than others. While they certainly are consulted, it worth pointing out some of their drawbacks. First, they generally are released by organisations that make no attempt to show how the prices were formulated. Second, and more important, at any given point in time, the prices provide only an indication. Depending on market demand, wholesalers will trade several percentage points above or below a listed price.
  • How much should I pay for a diamond?

    It’s pretty much up to you. Diamonds come in a substantial number of sizes and qualities, and consequently the price range is wide. If you’re on a fixed budget, you also have a number of options. Want a big stone? Then consider going for a lower colour, a lower clarity grade and possibly a medium-quality cut or finish. Those who wish to buy a stone that displays a lot of fire, may have to accept a smaller sized diamond.

  • How are prices set for diamonds?

    When a jeweller prices a stone, he or she typically consults a table that provides an up-to- date estimate of value, which is broken down by clarity, colour and cut and then by caratage. Assuming that the value of clarity, colour and cut remain constant, as caratage increases, the rise in value is not linear. This is because bigger stones are more rare, and therefore demand a higher price per carat.

  • Do all diamonds come with a grading report?

    A graded diamond (sometimes erroneously called ‘certified’) means that it is accompanied by a gemmological grading report. Many loose, larger diamonds, and diamonds used as a center stone in jeweller,. are accompanied by an independent gemmological grading report from a gemmological institute. This may be one of the internationally known institutes such as HRD Antwerp, AGS Laboratories, GIA (the Gemmological Institute of America) or the International Gemmological Institute (IGI). But in most countries there a reliable, local ‘labs’ that offer good services. Many jewellers will prefer working with a local lab or private gemologist they value and trust, and that’s perfectly fine!

  • A jeweller who showed me a diamond said it was a "piqué" diamond. What does that mean?

    Technically, a piqué is a small black inclusion in a diamond. But "piqué" is a term used by some to designate diamonds falling into the range of goods that have been designated the clarity grade "I"
  • Are inclusions bad?

    Few diamonds are IF – internally flawless. On the one hand, to the degree that they reduce the clarity grade of a stone, they are not desirable. One the other hand, inclusions, and in particular small ones, provide a unique identity to a stone. The random nature in which they are scattered ensures you that the diamond you bought is not like any other – just like yourself!
  • What inclusions are most common in diamonds?

    To answer this question, it's important to go back to the origin of diamonds. Diamonds are a form of carbon, which was transformed millions of years ago deep within the core of the earth under conditions of immense pressure and heat. During the crystalisation process, the diamonds were contaminated with many other agents—often gases and minerals. Other inclusions are essentially strains or internal fractures in the crystal structure. But, unsurprisingly, the most common inclusion is made up of what the diamond originally was comprised–pure carbon. This takes the form of tiny black spots, often buried deep within the crystal.

Privacy Policy


This Privacy Policy is intended to inform you how World Diamond Mark protects and uses personal information that is provided or generated when you use the World Diamond Mark Services.

We at World Diamond Mark appreciate your privacy. Accordingly, World Diamond Mark is committed to ensure that you are informed what data we collect, how your personal information will be used and kept, for what purpose do we collect it, and how we use it. Please take time to read our Privacy Policy carefully. 

This Privacy Policy applies to all of World Diamond Mark Services, including but not limited to website under the domain and its subdomains, mobile websites and mobile Application.


No Data Mining

World Diamond Mark does not access your content, files, contacts, microphone, camera, or other peripheral devices and applications in order to gather information and data.


Anonymous Tracking

World Diamond Mark Service employ several common tracking technologies, such as browser cookies, social media plug in cookies, web beacons ("pixel") and similar technologies. World Diamond Mark uses these tools to monitor and improve the traffic in the World Diamond Mark Services through aggregate analytic tools, by evaluating trends and collecting statistics. Such anonymous information may comprise URLs or domains of referring websites, browser and device identifiers, operating system, language, the pages that you access and the date and time of your browsing the Services. 

World Diamond Mark does not combine or correlate anonymous information with personal information that you disclose.

Some of the information relating to your use of the Services may be transmitted and shared anonymously with our affiliates, such as google and Facebook who may use such anonymous information to provide you with online advertising, that may or may not be tailored to your interests, based on your online history in browsing the Services and other websites.


Personal Information

Most of the World Diamond Mark Services are free and you may use the Services without registering or submitting any personal information. Registration to World Diamond Mark Subscription Services enables you to access exclusive features.

You are responsible for protecting the confidentiality of personal information you provide upon subscription, such as your credentials for access (e.g., your username and password), credit card information, etc. and for complying with any guidelines that may be prescribed by World Diamond Mark from time to time to prevent unauthorized access to the Subscription Services. You agree to notify World Diamond Mark immediately of any unauthorized use of your password or any other breach of security. World Diamond Mark reserves the right to perform encryption of passwords for account maintenance purposes.

World Diamond Mark does not share, sale or trade your personal information with other parties, for marketing purposes or otherwise.

World Diamond Mark collects, stores and uses personal information you provide to facilitate the Services, to enable your access to Subscription Services, to send you newsletter and to inform you of products and promotional offers in the Online Store. Such information may include your personal address, shipping address, e-mail, phone, age, credit card information and more.

Your personal information may be shared and disclosed only to competent World Diamond Mark subsidiaries, affiliates, service providers and vendors, who need such information in order to provide you with products and services on behalf of World Diamond Mark.

Payments made in connection with purchases on the Online Store and subscription fees, are processed through World Diamond Mark vendors, who handle such transactions. These vendors are only provided with the information that is necessary for them to provide the services and they are not authorized to use your personal information for any other purpose.

When you unsubscribe your personal information will not be automatically deleted. If you wish to remove your personal information from World Diamond Mark records, please contact us at Deletion of personal information may not be immediate and residual copies of your information may remain on backup media or files for a longer period of time.


Notices and Direct Mailing

By subscribing to the pertinent part of the Services and providing personal information, you give your consent to World Diamond Mark to communicate with you directly through the Services or through e-mails and among others to send you from time to time newsletter and advertisings relating to the Services. If you wish to be removed from the World Diamond Mark mailing list, you may opt out at any time by following the "remove from distribution list" instructions included in the e-mail message.


World Diamond Mark Service are designated for general audience and are not designed or directed specifically for children. World Diamond Mark does not solicit information from children. Children under the age of 13 must obtain permission from an adult holding parental responsibility over them, before submitting personal information or other data or materials to the Services. Upon notice that a user under the age of 13 has provided personal information without prior parental consent, World Diamond Mark will remove such personal information from our records. 

World Diamond Mark does not sell products on the Online Store for purchase by children. Children's products available at the Online Store are intended to be purchase by adults.

Parents are encouraged to supervise their children while browsing the Internet and to guide them how to protect their privacy and to refrain from providing personal information. World Diamond Mark urges parents to be aware of online filtering tools.



World Diamond Mark uses cookies to allow automation of access and data entry functions of the Services, to track use of the Services, and to improve and update them effectively. Approved affiliates and social media providers may use their own cookies, through plugin functionalities.

You may choose to set your browser to reject cookies, or to delete them periodically. Most content placed on the Services can be displayed without cookies, so as to maintain high level of privacy protection.  However, cookies are required in case you wish to use the World Diamond Mark Subscription Services (including for the purposes of storing your username and password), to make contribution, upload User Content, or if you wish to purchase items on the Online Store.

World Diamond Mark does not otherwise store your personal browsing history and does not process or analyze it.

World Diamond Mark does not remove cookies from your devices when you unsubscribe World Diamond Mark Services, or in any other case.


No Location based Services

World Diamond Mark's mobile application does not currently make use of your location-based data.


Legal Order

World Diamond Mark makes its best efforts to preserve your privacy. However, we may be compelled to disclose personal information when required by law or by a court order, wherein we have a good-faith belief based on legal advice, that such action is unavoidable.



World Diamond Mark maintains state of the art commercial protections to preserve your personal information. However, no transmission of information and data over the Internet is completely secured from intrusion. World Diamond Mark uses and will continue to use commercially reasonable efforts to ensure the protection of your personal information.


Links and Third Party Websites

World Diamond Mark Services may comprise links to other websites (which may be hosted or operated by unrelated third parties). Third party websites are not subject to this privacy policy and World Diamond Mark makes no representation as to their compliance with your privacy requirements or needs, or the Law.


International Transfer

World Diamond Mark may transfer and store your information on computers or servers located outside of your state or country, where the privacy laws may be different from those in your jurisdiction. World Diamond Mark adheres to the privacy laws of the European Union. Your consent to this Privacy Policy followed by browsing World Diamond Mark Services, represents your agreement to such transfer.




These Terms of Use constitute a legally binding agreement ("Agreement") between You and The World Diamond Mark Foundation of 11/F, Effectual Building, 16 Hennessy Road, Wanchai Hong Kong ("World Diamond Mark") and governs your use of the World Diamond Mark website ("Website"), including its subdomains, mobile websites and mobile Application (collectively, the "Services").

The Services of World Diamond MarkTM - titled Part Of YouTM, are virtual foundations aimed at bringing together and put on display a unique source of knowledge and information about the world of diamonds and to comprise collections of extraordinary diamonds and diamond jewelry stories.

Your use of the Services (through any device, including but not limited to computer, laptop, smartphone, tablet, television, etc.), constitutes and expresses your agreement to these Terms of Use. By using the Services, you represent that you, or your legal guardian acting on your behalf, are of legal age and capacity to form a binding contract. If you do not agree with these Terms of Use, please do not use the Services. World Diamond Mark reserves the right to revise, change, modify, add, or remove portions of these Terms of Use at any time, and the modified Terms of Use will be effective and binding as of the time they are posted on the Services, without additional notice to You. Please check this page periodically for any modifications. Your use of the Services following the posting of changes constitutes your acceptance of the changes.


  1. Definitions:

In these terms

  • "Content" includes, but is not limited to any technology, software, shareware, texts, images, illustrations, diagrams, curatorial notes, displays, audio, video, motion pictures, animation, instructions, methods, schemes, concepts, and know-how displayed on the Services and/or used in providing the Services.
  • "Intellectual Property" includes, but is not limited to the worldwide copyrights, inventions, patents, utility models, trademarks, service-marks, logos, brand names, good-will, designs, trade secrets and know-how; regardless whether these rights were registered in any country or not.
  • "Educational Purposes" includes but is not limited to non-commercial education, teaching, learning, distance learning, private study, retrieving information, research and practicum.
  • "Fair Use" means non-commercial use of the Content for the purposes of criticism, commentary, and reporting, or other uses prescribed by applicable laws as "fair use".
  • “Dispute” means any dispute, action, or other controversy between you and World Diamond Mark or its directors, officers, shareholders, parents, subsidiaries, affiliates, agents, licensors or providers, concerning the Services or these Terms of Use, whether in contract, warranty, tort, statute, regulation, ordinance, or any other legal or equitable basis. “Dispute” will be given the broadest possible meaning afforded under law.


  1. Ownership.
    • All the Content on the Services and all Intellectual Property associated with the Content, are the property of World Diamond Mark and/or its licensors, unless otherwise stated or marked and are protected by intellectual property laws and treaties. The Content is an original cumulative work created and by and/or commissioned for World Diamond Mark. World Diamond Mark retains any and all right, title and interest in and to the Content, as well as any and all intellectual property rights contained or vested therein or deriving therefrom.
    • Parts of the Content may comprise images that are covered by Creative Common Zero (CC0) license. You may use such images in accordance with the terms of the CC0 license. However, you may not use content that combines works covered by CC0 with original Content or materials that constitutes original copyrighted reproduction of works covered by the CC0.
    • The names World Diamond Mark and Part Of You (the "Trademarks") are registered and/or unregistered trademarks of World Diamond Mark. Except for the purposes of citation, credit or endorsement, you may not use the Trademarks without the express written permission of World Diamond Mark. Any unauthorized use of the Trademarks, is strictly prohibited.
    • Except for the limited license granted below or the CC0 terms (where applicable), nothing contained herein shall be construed as conferring upon you any license, title, or ownership of or to any Intellectual Property comprised or vested in the Content or the Service and you may not exercise any use of or exploit the Content in any manner that is not explicitly permitted in these Terms of Use.
    • The rights to any change, amendment, modification, revisions or creation of derivative work in the Content and the Services are reserved to World Diamond Mark, except with respect to works covered by the CC0 license, which may be used freely. You agree not to alter, change, or modify any part of the Content and/or the Services.


  1. License.
    • World Diamond Mark hereby grants to you, subject to these Terms of Use, a personal, non-exclusive, non-transferable, non-sub-licensable limited license to access, browse and use the Service (including the Content thereon) as specified below. All rights not expressly granted by said license are reserved by World Diamond Mark.
    • You may copy, print and display reasonable parts of the Content, only for your personal, educational, non-commercial use. Parts of the content may be subject to restrictive licenses. Such parts may not be used, copied, distributed or otherwise exploited in any manner. If you do not comply with such restrictions, you may commit infringement of copyrights or other rights and exposed to legal proceedings.
    • You may distribute and react to the Content through social media applications, to the extent afforded by the functionality embedded in the Services.
    • If you are a teacher, scholar or student, you may copy reasonable portions of the Content for lesson plans, reports, dissertations, presentations, school newspapers (printed or on-line) and for similar nonprofit educational purposes to the extent permitted as Fair Use. You may share your work products containing the Content with your respective teachers, students and fellow students and teachers, but you may not display, upload, or otherwise distribute or make your work products available to the public. Any such use of the Content should cite the author/artist and the Website, as the source of the Content, including the URL Such citation must not imply endorsement by World Diamond Mark of your use of the Content or create any likelihood of association between you and World Diamond Mark or the Services.
    • You may not copy, publish, distribute, upload, retransmit, make available, sell or in any other manner make use of the Content or the Services, or any part thereof, unless such use is specifically prescribed as Fair Use and is permissible under these Terms of Use. You may not distribute, make available to the public, broadcast, transmit, publically perform, translate or prepare derivative works of the Content in any medium or formats and through any media channels.
    • You may not remove or alter any copyright, trademark, service mark or other proprietary notices or legends, including without limitation attribution information, credits and copyright notices. CC0 license preserve authors' moral rights. Accordingly, if you use images covered by CC0 license, the rights for attribution and credits must be adhered.
    • You may not decompile or disassemble any software, shareware or other technology accessible through the Services, insert any code, data or product, or manipulate the Content and the Services in any way that may affects the user's experience and use of the Services.


  1. Third Parties' Copyrights
    • World Diamond Mark respects the intellectual property of others. Accordingly, while the Content may comprise images of works and designs that World Diamond Mark believes to be in the public domain, World Diamond Mark makes no representation as to the legal status of such works. Accordingly, as far as such images are not marked as covered by the CC0 license, you are requested to use such works and designs in the same manner as proprietary works covered by the abovementioned license, namely only for non-commercial, educational fair use, with adequate citation and credits.
    • The Content on the Services may include trademarks, logos and brand names owned by third parties. Any use of such trademarks, logos and brand names requires and is subject to the permission of their respective owners. You acknowledge and agree that nothing on the Content and/or the Services grants, expressly or implicitly, by estoppel or otherwise, any right or license to use, or may be construed to mean that World Diamond Mark authorized such use or granted any right or license on behalf of any third party trademark owner.
    • World Diamond Mark makes its best efforts to honor copyright holders and attempted to verify the status of any work included in the Content and obtain pertinent licenses with respect thereto. if you believe, despite the above, that your work has been copied into the Service or reproduced without authorization, or that your Intellectual Property has been otherwise utilized in a manner that you believe to constitutes infringement, please provide the following information to World Diamond Mark:
      • a description of the copyrighted work or the Intellectual Property that you claim has been infringed;
      • a description of where the Content that you claim to be infringing is located on the Services;
      • your contact information, including address, telephone number, and email address;
      • a statement that you have a good faith belief that the disputed use is not authorized by the Intellectual Property owner, their agent, representative or licensee, or the law;
      • a statement that the above information in your notice is accurate and that you are the Intellectual Property owner or authorized to act on the owner’s behalf.
    • World Diamond Mark’s agent for notice of claims of Intellectual Property infringement can be reached as follows:


  • World Diamond Mark makes no representation or undertaking that after deliberate examination of your complaint, the disputed material will be removed from the Services. World Diamond Mark reserves all its rights and contentions with respect to any disputed use of purported third party's Intellectual Property.


  1. Integrity
    • World Diamond Mark authored and created the Content in the Services with careful regard for accuracy and integrity of scholarship. World Diamond Mark will make its best efforts to improve, enhance, and expand the Services and the Content therein on a continuous basis. World Diamond Mark believes that the context, in which Content is presented, is important to understanding it. Thus, while the Services may allow you to access subsets of the Content, we urge you to consider the complete context for maximum appreciation and accuracy.
    • World Diamond Mark may publish and broadcast on the Services sponsorships, advertisements, and commercials (collectively: "Commercials") at World Diamond Mark sole discretion and you represent and acknowledge that you will have no claim or cause of action with respect to those Commercials.
    • If you believe that a certain fact comprised in the Content is inaccurate, harmful, unreliable in any manner, defamatory, misleading, or distasteful, please provide the following information to World Diamond Mark:
      • a description of where the Content that you believe to be inappropriate is located on the World Diamond Mark Websites;
      • your address, telephone number, and email address;
      • a statement that you have a good faith belief that the Content is inappropriate and the reasons for such belief;
    • World Diamond Mark’s agent for notice of inappropriate Content can be reached as follows:



  1. Protection of Privacy
    • World Diamond Mark is committed to protecting the privacy of users of the Services in accordance with applicable laws and regulations. All information gathered from you in connection with your use of the Services is governed by World Diamond Mark , which is incorporated in these Terms of Use.
    • The Services are not specifically directed to children and World Diamond Mark does not solicit information from children. Children under the age of 13 must obtain permission from an adult holding parental responsibility over them, before submitting personal information or other data or materials to the Services.


  1. Limitation of Liability and Exclusion of Warranties
    • These terms of Use do not constitute any representation, warrantee, undertaking or condition on behalf of World Diamond Mark with respect to the Services. In particular, World Diamond Mark does not represent or warrant that:
      • Your and others' use of the Service will meet your requirements;
      • Your and others' use of the Service will be uninterrupted, timely, secure or free from errors;
      • Defects in the operation or functionality of the Services will be corrected.
    • In no event shall World Diamond Mark, its directors, officers, shareholders, parents, subsidiaries, affiliates, agents and licensors, or providers be liable for any indirect, special, incidental, punitive, or consequential damages arising out of or related to the use, inability to use, performance or nonperformance of the Services, even if World Diamond Mark was previously advised of the possibility of such damages and regardless of whether such damages arise in contract, tort, unjust enrichment laws, under statute, in equity, at law, or otherwise.


  1. Indemnification
    • To the fullest extent permitted by law, you agree to indemnify and hold World Diamond Mark, its directors, officers, shareholders, parents, subsidiaries, affiliates, agents, and licensors harmless from and against all losses, expenses, damages, and costs, including reasonable attorneys' fees, arising out of (i) your violation of third party's intellectual property rights, or the privacy or publicity rights of others, (ii) your use or unauthorized copying of the Services or the Content, or (iii) your violation of these Terms of Use or any applicable laws or regulations.



  1. Enforcement, Jurisdiction and venue
    • No waiver. You expressly agree that World Diamond Mark's failure or choice not to exercise or enforce any legal right or remedy which is granted to it under these Terms of Use or by operation of any applicable law, rule, regulation or statute; shall not be construed as a waiver of World Diamond Mark's rights and entitlements to remedies and shall not be construed as release or discharge to you or to third parties acting for you or on your behalf, from your undertakings and obligations under these Terms of Use.
    • These Terms of Use shall be governed by and construed in accordance the laws of England, excluding its choice of- law principles. You hereby agree to submit to the exclusive jurisdiction of the Courts of England to review any legal dispute or claim arising from your use of the Services or from these Terms of Use or the breach thereof.
    • Class action waiver. Any proceedings to resolve or litigate any dispute will be conducted solely on an individual basis. You may not seek to have any dispute heard as a class action, or join in a class action or in any other proceeding in which either party acts or proposes to act in a representative capacity. No proceeding will be combined with another without the prior written consent of all parties to all affected proceedings.
    • Limitation. To the extent permitted by law, any claim or dispute you initiate must be filed within three years. The three -years period begins when a cause of action forms. If a lawsuit is not filed within three years, it shall be permanently barred.
    • Not Advice. Information contained in the Services is not intended to be professional or scientific advice or recommendation and should not be considered as such, nor is it intended to replace consultation with a qualified professional in the pertinent field.
    • Severability. If any provision of these Terms of Use shall be unlawful, void or for any reason unenforceable, then that provision shall be deemed severable from these Terms of Use and shall not affect the validity and enforceability of any remaining provisions.
    • Survival. The provisions of these Terms of Use which by their nature should survive the termination of these Terms of Use and your use of the Services, shall survive such termination.


  1. Subscription Services.
    • Some of the Services may be available only by subscription, (the "Subscription Services"). Some of the Subscription Services may be provided for payment ("Subscription Fees"). Your right to use the Subscription Services for which you have subscribed is personal to you or members of your immediate family residing with you.  
    • You are responsible for protecting the confidentiality of your credentials for access to the Subscription Services (e.g., your username and password). You agree to immediately notify World Diamond Mark of any unauthorized use of your password or any other breach of security. World Diamond Mark reserves the right to perform encryption of passwords for account maintenance purposes.
    • Subscription Fees and Changes. Charge of Subscription Fees begins on the date your Services subscription is activated or, if applicable, on the date your free trial period ends, and will be periodically billed to your credit or charge card thereafter. You acknowledge and agree that you will not receive a printed bill in the mail for your Subscription Fees. World Diamond Mark reserves the right to increase the rates of Subscription Fees at any time, but not before the end of your subscription term. Increases in subscription rates will apply to existing accounts at the time of their renewal and will not exceed the standard subscription rate at the time of renewal. Periodic discounts in subscription rates will not necessarily be reflected in your renewal or on-going subscription rates. Customers subscribing at specially discounted promotional rates may be subject to varying rate increases, none of which shall exceed the standard posted subscription rate.
    • Termination of Subscription and Free Trial. You may terminate your subscription at any time by providing notice of termination to World Diamond Mark. In the event of termination of your subscription, you shall have no claims or cause of action against World Diamond Mark, its officers, directors, employees, or its affiliates. Termination of your subscriptions or free trial automatically terminates your license to use the Subscription Services and any Content or other material contained therein.
    • Renewals and Cancellations. YOUR SUBSCRIPTION WILL RENEW AUTOMATICALLY AND WITHOUT FURTHER NOTICE TO YOU, unless World Diamond Mark terminates it for any reason or you notify World Diamond Mark by email (receipt of which must be confirmed by email reply from World Diamond Mark) of your decision to cancel or terminate your subscription. You must cancel your subscription before the renewal date in order to avoid billing of Subscription Fees for the renewal term to your credit card.
    • If you terminate or cancel your subscription within 30 days of the date of activation or renewal of your Account and before you entered the "Subscription Services", you are eligible to receive a refund of the full annual Subscription Fees paid to World Diamond Mark. IF YOU TERMINATE YOUR SUBSCRIPTION AFTER THE 30 DAYS PERIOD OF ACTIVATION OR RENEWAL OR IF YOU USE THE "SUBSCRIPTION SERVICES" WITHIN THAT TERM, YOU WILL NOT RECEIVE ANY REFUND OF THE ANNUAL SUBSCRIPTION FEE PAID TO WORLD DIAMOND MARK.
    • In the event that you cancel or terminate your subscription, unless otherwise required by law, Subscription Fees will not be refunded, applied to another subscription, or transferred to anyone else and are not convertible to cash or other form of credit.
    • Credit Cards or Charge Cards. You agree that you will provide a credit or charge card that World Diamond Mark may charge for all subscription fees or other amounts payable to World Diamond Mark. With respect to such charges, you give the following authorization:

I authorize automatic credit or charge card billing by World Diamond Mark. I agree that the charges described above will be billed by World Diamond Mark to the credit or charge card that I have provided to World Diamond Mark in my Account information, or otherwise when I applied for the Subscription Services. I understand that all fees and charges may be nonrefundable. I agree that World Diamond Mark will not be responsible for any expenses that I may incur resulting from overdrawing my bank account or exceeding my credit limit as a result of an automatic charge made under this Agreement.

  • Account and Billing Information. You agree to provide current, complete, and accurate information for your Account in order to receive access to the Subscription Services. You agree to promptly update all account information to keep your account current, complete, and accurate in case of a change, and you must promptly notify World Diamond Mark if your credit or charge card is cancelled or if you become aware of a potential breach of security. If you fail to provide World Diamond Mark of the foregoing information, you agree that World Diamond Mark may assume that your credit or charge card is either still valid or that it has been renewed and may continue charging you for the Subscription Services to which you have subscribed, unless you have cancelled your subscription.




  1. Users Generated Content.


  • World Diamond Mark welcomes you to share information, views, insights, experiences and discoveries relating to the world of diamonds, gems and jewelry, by submitting video clips, comments, illustrations, text and stories ("User Content") to the Services.
  • World Diamond Mark does not represent and does not warrant that your User Content will be published or displayed on the Services. World Diamond Mark retains the right to publish, maintain, remove, rank, and/or position your User Content at its sole discretion.
  • You acknowledge that you understand and agree that whether or not your User Content is published, World Diamond Mark does not guarantee any confidentiality with respect to the User Content. Your User Content may not be submitted anonymously or incognito and therefore, any User Content submitted by you may be associated with you.
  • By submitting User Content, you grant World Diamond Mark an unlimited irrevocable perpetual license that is not limited in term, to use the User Content, which use includes but is not limited to copy, reproduce, distribute, display, make available to the public, broadcast, transmit, publically perform, translate and prepare derivative works of (and to use and exploit such derivative works in any manner), in any medium or formats and through any media channels ("User License"). The User License granted by you in connection with textual comments, talkbacks and reviews you submit is perpetual and irrevocable.
  • By submitting User Content, you further grant to each user of the Services, a worldwide, non-exclusive, royalty-free license that is not limited in term, to access your User Content through the Services, and to share, distribute, transmit, recommend, like, comment, or otherwise react to such User Content, to the extent afforded by the functionality embedded in the Services. Same restrictions apply to you when you access other users' User Content.
  • You acknowledge that you understand and agree that the sole responsibility for any damage that may be caused by your User Content, to yourself or to third parties, lies with you. You alone shall bear the consequences of submitting, posting or publishing the User Content. World Diamond Mark does not endorse any User Content or any opinion, recommendation, or advice expressed therein, and World Diamond Mark expressly disclaims any and all liability in connection with your User Content.
  • You represent and warrant that you have all necessary rights, consents, and permissions which are required to enable World Diamond Mark to publish, broadcast and make available the User Content. Specifically, if you include images, pictures or photos of other people in your User Content, you warrant and represent that you obtained the consent and approval of such people to the use (including parents and/or guardians' approval).
  • You warrant and represent that: (i) you are legally entitled to post the User Content and to grant World Diamond Mark the User License ;(ii) you are the author and sole owner of and/or hold all rights in and to the User Content; (iii) there are no restrictions or limitations which prevent you from granting the User Licenses herein; (iv) the User Content is original and does not infringe upon any third party's rights (including copyrights, rights of privacy or rights of publicity, trademarks or trade secrets), unless you have a formal license or adequate permission from the rightful owner or licensee to use the material.
  • You further warrant and represent that the Content will not: (i) contain any information that you are aware or suspect that is inaccurate, harmful, dangerous or unreliable in any manner; (ii) facilitate or promote illegal activity, or contain content that is illegal; (iii) contain content that is defamatory, misleading, fraudulent, obscene, distasteful, racially or ethnically offensive, harassing, abusing, or that is discriminatory based upon race, gender, color, creed, age, sexual orientation, or disability; (iv) contain sexually suggestive, offensive or explicit wording; (v) contain any virus, worms, Trojan horses, spyware or any other malware and other disabling or damaging codes; (vi) contain third party's trade secrets; or (vii) otherwise contain content that violates any laws, rules, regulations or policies of any competent jurisdiction.
  • World Diamond Mark is a non-for-profit organization. Accordingly, you acknowledge and undertake not to submit User Content which is intended for business promotion, PR, or advertising purposes per-se and that your User Content will not contain adware. While recommendations and reviews relating to the purposes of World Diamond Mark venture are permitted, you warrant and represent that the User Content will not mainly promote any business, product or service, as such. You further agree that you will not exploit the Service for solicitation of business or any other commercial use.
  • You agree to cooperate, defend, indemnify and hold harmless World Diamond Mark and its officers, directors, employees, shareholders, customers, agents, successors and assigns from and against any and all loss, damage, settlement or expense (including reasonable legal expenses) from and against any claim arising from breach of your representations and warranties set forth in these Terms.
  • In case of violation of your above obligations and for any reason which World Diamond Mark deems appropriate, World Diamond Mark reserves the right (but shall have no obligation) not to publish and/or to remove your User Content from the Website. If such violations are excessive or repetitive, World Diamond Mark may terminate your access to the Services at any time, without prior notice and at its sole discretion.
  • If you wish to remove User Content from the Services and to terminate the User License, you may do so by notifying World Diamond Mark at any time in writing, to


  • Removal of User Content and termination of the User License and License set forth herewith shall be subject to the following:
    • The User License with respect to the rights to publically perform, prepare derivative works and translate, shall not terminate and shall endure the removal of the User Content from the Services, if World Diamond Mark and/or World Diamond Mark's licensee has commenced substantial preparations and/or bore expenses in exercising the User License in connection with your User Content.
    • World Diamond Mark's obligation to remove User Content shall apply to the Services only and shall not span to any other website, social network, or and other media channels to which the User Content has been copied, uploaded, distributed or transmitted as provided by the User License, prior to the processing of your request to remove the User Content.




Legal Notices


All contents of the Services are © World Diamond Mark, Limited. or its licensors. All rights reserved.

The names World Diamond Mark and Part Of You are registered and/or unregistered trademarks of World Diamond Mark.





About us

The World Diamond Mark Authorised Diamond Dealer programme’s objective is to help retail jewellers sell diamonds and diamond jewellery more successfully, to enthuse and educate their staff members and sales staff, and by extension the customers that come into their stores. The retail jewellers who have joined our programme and adhere to our code of conduct and principles carry the World Diamond Mark Authorised Diamond Dealer seal that represents the diamond industry’s mark of confidence and underpins the consumers' diamond and diamond jewellery buying decisions.