A 586.43 ct cat’s-eye aquamarine is donated to the Smithsonian National Museum of Natural History.

Stefan and Alexander Kreis share three impressive gemstone acquisitions at GJX in Tucson.

An overview of the Spring 2023 Gems & Gemology content.

A graduate of GIA’s Jewelry Design program in London is the recipient of the 2022 Gianmaria Buccellati Foundation Award.

A look at plastic deformation, one of the most prevalent features in natural diamond.

Evaluates the growth mechanisms of special morphological features in Colombian emerald, including possible relationships to trapiche emeralds and samples displaying the gota de aceite effect.

A look at the largest CVD diamond GIA has encountered to date.

GIA is adding a report comment employing the trade color term “Peacock” for designated colors of cultured pearls from the Pinctada margaritifera black-lipped pearl oyster, commonly known as Tahitian pearls.

GIA is adding a report comment employing the trade color term “Peacock” for designated colors of cultured pearls from the Pinctada margaritifera black-lipped pearl oyster, commonly known as Tahitian pearls.

GIA’s industry-leading and globally-recognized diploma and certificate programs educate professionals with the skills needed for success in the gem and jewelry industry.

GIA will return to producing printed GIA Diamond Dossier reports beginning April 9.

GIA will return to producing printed GIA Diamond Dossier reports beginning April 9.

Cloud inclusions resembling stars at night are observed in a faceted diamond.

As a leading educational institute, GIA helps educate the next generation of gem and jewelry professionals in gemology, jewelry design and jewelry manufacturing arts.

As a leading educational institute, GIA helps educate the next generation of gem and jewelry professionals in gemology, jewelry design and jewelry manufacturing arts.