History of Diamond Grading in Australia

Blogs & News

Explore DCLA’s legacy as Australia’s leading diamond authority. Learn our history, meet the founders, and discover our unmatched grading expertise.

HPHT-Processed Natural and Laboratory-Grown Diamonds with Counterfeit Inscriptions

Recently, the Dubai laboratory encountered four stones submitted for update services inscribed with fraudulent GIA report numbers.[…]

GIA to Ditch 4Cs Lab Grown Grading from October

GIA says the switch to grading lab grown diamonds simply as "premium" or "standard" will take on[…]

The Industry’s “False Sense of Security” – Why Laser Inscriptions Alone Are Not Enough

In the diamond trade, we often speak of a laser inscription as if it is an unbreakable[…]

Downturn Forces GIA to Close Israel Lab

GIA is to close its lab in Ramat Gan, Israel, saying it is no longer “financially sustainable”.[…]

GIA Expands Fraud Checks to All Labs

GIA says it has expanded its new verification service - aimed at combating "cloned diamond" fraud -[…]

Gemmological Institute of America
Gemmological Institute of America seven week graduate diamond diploma

The GIA a gemmological organisation will be conducting a seven week graduate diamond diploma from January 8.

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