The Diamond Commission of CIBJO, the World Jewellery Confederation, approved amendments to the CIBJO Diamond Book at the ongoing CIBJO Congress in Bangkok, as part of an agreement with the International Diamond Council (IDC).

The move now harmonises the diamond nomenclature used by the World Federation of Diamond Bourses (WFDB) and the International Diamond Manufacturers Association (IDMA), the founders of the IDC, with CIBJO’s Blue Book.

“The CIBJO Diamond Book may now function as the single official reference book for nomenclature in the entire diamond and jewellery industry, with the goal of enhancing consumer confidence,” explained Udi Sheintal, the CIBJO Diamond Commission President.

“The true beneficiaries of this agreement are the diamond consumers, who will now be able to refer to a single set of rules for describing diamonds,” said CIBJO President Gaetano Cavalieri. “Our Blue Books are living documents, which are reviewed year in and year out on a continuing basis, to ensure that they are current with changing conditions and technological developments. The fact that the CIBJO Diamond Book now endorsed by the WFDB and the IDMA, serves the interest of both the industry and the marketplace.”

WFDB President Ernie Blom added, “This is a major step forward that we have worked towards for a long time. The IDC was created by the WFDB and the IDMA to defend the integrity of the diamond, and the step of creating a single, universally applicable book will combat any confusion in the market about nomenclature.”

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