While it may look like a blazing red ruby, the 2.33-carat Winston Red Diamond is just that—a diamond. One of the rarest ...

Beginning later this year, GIA (the Gemological Institute of America) will start using descriptive terms to characterize the ...

Behold: one of the rarest gems on Earth. This is the Winston Red, a mind-blowingly coveted and deeply mysterious “Fancy red ...

Every Color of the Rainbow 40 colorful diamonds ranging in size from 0.4 to 9.49 carats will be displayed at the National Museum of Natural History beside the Winston Red Diamond (far right).

Only about 30 percent of natural diamonds are considered gem-worthy, and among those, less than 1 percent are fancy color diamonds—that is, diamonds of unusual color. While the latter come in ...

The Gemological Institute of America (GIA) has decided to stop using its 4Cs grading system for lab-grown diamonds. This move ...

A diamond, natural or lab-grown ... enabling the production of lab-grown diamonds in a variety of colors, sizes, and qualities, enhancing their versatility within the jewelry market.

Washington, D.C. (7News) — Washington, D.C. (7News) -- Gabriela Farfan, Coralyn Whitney Curator of Gems and Minerals at the Smithsonian National Museum of Natural History joined Good Morning ...

color, clarity and carat — grading system as natural gems. The big question — can you tell if a diamond was human-made or mined? Both stones are optically the same, meaning they will look the ...

A lab-grown diamond looks just as beautiful as a natural diamond but is available ... They’ve got something most diamonds don’t – deep, rich color – yet they play well with diamonds.

color, clarity and carat — grading system as natural gems. The big question — can you tell if a diamond was human-made or ...