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.

A CVD Diamond Designed to Look Natural
GIA Alert: CVD Rough Made to Mimic Natural Diamond

The Gemological Institute of America (GIA) has issued an important warning after examining a 6.87-carat, near-colourless CVD[…]

An uneven color distribution is observed under visible light
GIA Examines a Remarkable Colour-Treated Purple Diamond

The Gemological Institute of America (GIA) has examined a fascinating 3.93-carat Type Ib purple diamond that had[…]

Modern gemmological testing involves far more than simply using a handheld diamond tester.
Consumer Alert: Certificate Swapping Fraud – A Growing Threat to the Diamond Industry

The Diamond Certification Laboratory of Australia (DCLA) Issues Warning to Consumers and the Jewellery Trade

GIA Acquires 30% Stake in Tracr as Diamond Provenance Takes Centre Stage
GIA Acquires 30% Stake in Tracr as Diamond Provenance Takes Centre Stage

The global diamond industry has taken another significant step towards greater transparency and traceability, with the Gemological[…]

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[…]

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