Get to know all you need about diamond – the history, facts, quality factors, treatments, imitations and much more here at GIA.

Whether examining the laboratory-grown diamonds submitted for grading reports, growing CVD diamonds at our research facility in New Jersey, or altering these materials through …

important limitations All Report Check information is subject to these limitations. Interested in getting your diamond graded by GIA? Submit Your Gem Now

Mar 14, 2013 · The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the …

While choosing a diamond is a very personal decision, evaluating a diamond should always be a matter of precision. At GIA, we are incredibly proud that our 4Cs of diamond quality continue …

Diamond forms under high temperature and pressure conditions that exist only within a specific depth range (about 100 miles) beneath the earth’s surface. Diamond’s crystal structure is …

Fancy Color Diamond Dazzling brilliance. Captivating color. These are the planet’s most valued gems.

what's in a name? Diamond [dye -mund] (noun) Diamond comes from the Greek word adamas which means “invincible.” For being the hardest material on earth, that is the perfect name for …

Jan 10, 2017 · Incredibly hard, highly refractive, practically impervious to heat, diamond is a crystal form of carbon. But what makes it a real diamond? Find out!

May 3, 2024 · Examines new developments in the story of diamond formation and their extraction from the earth.