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[…]
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[…]
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[…]
UK Advertising Standards Ruling Targets Lab Diamond Marketing
Two online jewellery retailers have been ordered to amend their advertising after the United Kingdom’s Advertising Standards[…]
CIBJO U-Turn: Don’t Say Lab Grown, Say Synthetic
The World Jewellery Confederation (CIBJO) is set to reverse a decision made in 2010 - and insist[…]
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[…]
GIA Moves to Redefine Lab-Grown Diamond Grading, Signaling Clearer Divide from Natural Diamonds
GIA Moves to Redefine Lab-Grown Diamond Grading