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How to grade a diamond at the HRD Lab ?

Whenever you are purchasing a piece of diamond jewellery or indeed loose diamonds, you should be issued with a diamond Certificate of Authenticity (COA). This certificate, also known as a 'diamond grading report', assures the buyer with verification of the quality of the stone. You could say that the certificate resembles a passport.

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You may ask the question who issues these certificates? The Certificate of Authenticity is issued by leading independent experts and the most recognised laboratories are the HRD of Antwerp, the GIA of New-York and the IGI of Antwerp. These organisations conform to global standards so it does not matter where you buy your diamonds, the ruling and validity for certification will be the same.


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