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Grading the Hope diamond

One of the most popular exhibits at the Smithsonian Institution, the stunning Fancy Dark grayish blue Hope diamond was formally graded by GIA’s gem laboratory.

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A woman and man sit at a table to look at GIA Retailer Support materials.
Article
GIA Resources Give Retailers an Edge in Customer Education

The GIA Retailer Support Program tools help guide consumers through the jewelry buying process so they can make informed and confident purchases.

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A group of nine people pose for a photo.
Article
Alumni Members: Stand Out by Taking Advantage of Opportunities, Events

Introduce yourself to industry leaders who inspire, share their knowledge, act as mentors and provide service to the industry they love.

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Spring 2000 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.

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Man in a hard hat sits in an underground emerald mine.
Article
Geologist’s Newest Mission: Share the Love of Colored Gemstones

African-born colored stone specialist visits America and changes his life forever; finding love, earning GG and starting a new career.

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G&G Spring 2018 Cover
Article
Spring 2018 G&G: Color Origin of Green Diamonds, Iridescence in Hematite, and the Outlook from Tucson

A summary of the Spring 2018 issue of Gems & Gemology.

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Natural blister in the form of a pearlfish.
Natural Blister from Entombment of a Pearlfish Within a Pinctada Maxima Shell

A blister in a P. maxima shell, formed when the mollusk's nacre covered a trapped pearlfish, preserves the fish in stunning detail.

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Pierre Cartigny delivers a presentation at the IDS.
Fourth International Diamond School

A report from the fourth International Diamond School, held in January 2018 in Brixen-Bressanone, Italy.

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Phenakite with beryl and yellow phenakite.
Color Origin of Phenakites from the Ural Emerald Mines

An investigation into jewelry-grade phenakite from Russia.

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GIA Museum display on liddicoatite tourmaline at the 2018 Tucson Gem and Mineral Show.
Zoning In on Liddicoatite Exhibit

An exhibit at the Tucson Gem and Mineral Show dedicated to former GIA president Richard T. Liddicoat (1918–2002).

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