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INVESTING IN DIAMONDS


International certifications

The World Diamond Group has combined its expertise in the diamond sector, acquired in more than 30 years of the company's history, with the reputation of international bodies that certify the quality of the raw material.

Only in this way does the Group feel it can keep faith with its philosophy which aims to develop creativity and design in compliance with the standards of excellence required in this sector.

Buying a jewel is an important act, for ourselves and for those who will receive the object. It plays a delicate role in our lives, because it binds us to unforgettable people and moments, it expresses emotions like words sometimes fail to do, and it maintains over time the best memories and the value of a heritage we have invested in.

International certification as a model of transparency

1. Transparency of dialogue with an increasingly informed public who want to have "guarantees" on what is offered

2. Clarity of universally recognized language, simple, direct and rationalized in a single statement

3. Specialization in the supply, mainly offering jewellery with internationally certified diamonds

4. Italian excellence in the selection of materials to be used and in the art of goldsmith production



Specialization and exclusivity
are synonymous with Professionalism

Each of our pieces of jewellery with diamonds equal to or greater than 30 points is accompanied by a Certification Project



  • World exclusive:
    WDG in joint branding with Martin Rapaport

    Recently the company has obtained a worldwide exclusive: a co-branding with MARTIN RAPAPORT, a global reference for all operators through RAPAPORT’s platform, which determines the values of diamonds in which companies trade, and which exclusively certifies the diamonds of World Diamond Group classic jewellery.

    Having a jewel with a RAPAPORT RDC certificate gives you the certainty that it is a diamond with parameters of excellence that meet the 'premium' requirements established by RDC and that has already been subjected to strict GIA certification. With RDC you can guarantee the customer, with maximum security, a jewel of undisputed value and quality, which over the years will have a greater chance of being appreciated on the market than the average.

  • The Partnership with the De Beers Group

    Since 2018, WDG has been the exclusive partner of De Beers Group for the Forevermark brand which has always distributed jewels with prestigious certifications, such as GIA and IIDGR – De Beers.

  • Gemological Institute of America

    GIA is one of the most important accredited institutes worldwide. Due to its strict parameters, the certification it issues is a guarantee of quality both for those who buy and sell blistered diamonds and for those who deal with diamond jewellery.

  • International Gemological Institute

    Among the largest laboratories for the certification of diamonds and precious jewels, IGI is the only international certification laboratory controlled by a central government body that adheres to an accepted international system for the classification of diamonds.

  • High Council of Diamonds

    Highly certified in quality and reputation, Hoge Raad voor Diamant (HRD), known as the "High Council of Diamonds", was founded in Antwerp and is the European counterpart of the U.S. GIA. It issues certificates for diamonds, precious stones and classic jewellery, based on internationally accepted standards and according to a rigorous, precise, consistent and clear gemmological classification.

  • World exclusive:
    WDG in joint branding with Martin Rapaport

    Recently the company has obtained a worldwide exclusive: a co-branding with MARTIN RAPAPORT, a global reference for all operators through RAPAPORT’s platform, which determines the values of diamonds in which companies trade, and which exclusively certifies the diamonds of World Diamond Group classic jewellery.

    Having a jewel with a RAPAPORT RDC certificate gives you the certainty that it is a diamond with parameters of excellence that meet the 'premium' requirements established by RDC and that has already been subjected to strict GIA certification. With RDC you can guarantee the customer, with maximum security, a jewel of undisputed value and quality, which over the years will have a greater chance of being appreciated on the market than the average.

  • The Partnership with the De Beers Group

    Since 2018, WDG has been the exclusive partner of De Beers Group for the Forevermark brand which has always distributed jewels with prestigious certifications, such as GIA and IIDGR – De Beers.

  • Gemological Institute of America

    GIA is one of the most important accredited institutes worldwide. Due to its strict parameters, the certification it issues is a guarantee of quality both for those who buy and sell blistered diamonds and for those who deal with diamond jewellery.

  • International Gemological Institute

    Among the largest laboratories for the certification of diamonds and precious jewels, IGI is the only international certification laboratory controlled by a central government body that adheres to an accepted international system for the classification of diamonds.

  • High Council of Diamonds

    Highly certified in quality and reputation, Hoge Raad voor Diamant (HRD), known as the "High Council of Diamonds", was founded in Antwerp and is the European counterpart of the U.S. GIA. It issues certificates for diamonds, precious stones and classic jewellery, based on internationally accepted standards and according to a rigorous, precise, consistent and clear gemmological classification.

Discover all our jewels with diamonds

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