Jacques addresses the significance of the astounding Lucara Diamond recently discovered, and GIA's work helping dealers, ...

Protect Your Customers and Your Business One of the most pressing challenges facing the diamond industry is the risk of ...

Diamonds and other gemstones are weighed in metric carats: one carat is equal to 0.2 grams, about the same weight as a paperclip. (Don’t confuse carat with karat, as in “18K gold,” which refers to ...

The GIA iD100 ® uses advanced spectroscopic technology to distinguish natural diamonds from laboratory-grown (HPHT and CVD) diamonds and diamond simulants. The GIA iD100 can test colorless to ...

Millions of diamonds are graded in GIA Laboratories annually. However, more and more counterfeit diamonds have shown up in the trade, becoming an increasing concern. To address this issue, a portable ...

Graders at the Gemological Institute of America (GIA) recently came across some natural diamonds with interesting inclusions, some of which resembled animal life. A round, 1.55-carat, G-color, ...

Lab-grown diamonds are also being used for money laundering. Late last year, Indian and Hong Kong customs revealed a joint operation in which they discovered “cheap synthetic diamonds were being ...

Some 1,500 jewelry shops are situated in LA's jewelry district. And they have advice for buyers on what to look for when ...

Is it finally time for coloured diamonds to take centre stage? Here, jewellery designer AARTI SONAWALA talks about them and ...