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Showing 17 results for "garnet"
The superior size and color of the 325.13 ct. tsavorite garnet from Merelani was discovered at the Tucson Gem & Mineral show in 2007. Courtesy of Michael Couch & Associates, West Des Moines, Iowa; photo by Robert Weldon © GIA Article
The Glory of Green Gems

Green gemstones, which can uplift and heal our spirits, have been popular gem choices ever since we began to adorn ourselves with jewelry.

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Spring 1986 G&G Lab Notes

This section, from the Spring 1986 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Summer 2004 G&G Lab Notes

This section, from the Summer 2004 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Tubles in a Natural Emerald
Spring 1983 G&G Lab Notes

This section, from the Spring 1983 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Optical Opal Structure
Summer 1982 G&G Lab Notes

This section, from the Summer 1982 issue of Gems & Gemology, is a complilation of interesting finds from GIA's laboratories.

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Gemstones with Alexandrite Effect

The term "alexandrite effect" refers to the apparent change of color in certain minerals from blue-green or greenish violet in daylight to red or reddish violet in incandescent light.

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Spring 1987 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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Spring 1988 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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Award Winning Ring thumb Article
Gemologist’s Black Opal Ring Wows Consumer, Trade Media

GIA grad Niveet Nagpal, president and head designer of Omi Privé, showcases his love of gems and brings them to life in his designs.

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Three pieces of labradorite with yellow, blue and green flashes of color. Article
Optical Effects of Phenomenal Cabochons

Learn how the structure, inclusions and properties of some gemstones interact with light to create unusual visual effects.

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