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 ...

Established in 1931, the Gemological Institute of America (GIA) is the world’s foremost authority on diamonds, colored stones, and pearls. A public benefit, nonprofit institute, GIA is the leading ...

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, ...

A high-quality platinum or yellow gold band will increase the value of your piece while holding up against everyday wear and ...

A Guide to Luxurious and Unique Jewelry Yellow diamond bracelets are a stunning way to add a pop of color and sophistication to any jewelry collection. Known for their radiant hue, yellow diamonds ...

Even the best lab-grown diamonds can stir up a bit of skepticism in shoppers—and for good reason. You might wonder: How can anything concocted in a laboratory compare to what’s organically ...

a research scientist and senior manager of identification at the Gemological Institute of America (GIA). “They are both ‘diamonds.’” Choosing a lab-grown diamond also comes with some ...

the only place where Congolese diamonds can be certified for export. ­Kindamba’s diamonds will be sold on at least twice before they reach a licensed buyer where a representative from the ...

At close: November 11 at 4:00 PM EST ...