U.S. Holiday Closure
The Carlsbad and New York laboratories and schools will be closed on Monday, May 28 in observance of the Memorial Day holiday. These locations will resume regular business hours on Tuesday, May 29.
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Courtesy of: Thomas M. Schneider (Rough)
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Research & News
Micro-World
Green Crystals in Yellow Sapphires
Two yellow sapphires yield surprising green inclusions.
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Event
2018 GIA Symposium
Scientists and business leaders will gather at a summit of the gem and jewelry industry.
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Alumni Spotlight
Making of M.D. Hohenstine’s Gem Displays
Jeweler M.D. Hohenstine’s spectacular window displays were a beloved tradition in downtown Columbus, Ohio, for more than 50 years.
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Micro-World
Vesuvianite in Burmese Ruby
A yellowish green crystal inclusion in a ruby is found to be vesuvianite.
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Gem News International
Aquamarine from Pakistan
A gemological investigation of the aquamarine that has emerged from northern Pakistan in recent years.
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