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Courtesy of: Bear Essentials, AF Greenwood,
Tommy Wu, Shire Trading Ltd., Hong Kong,
Evan Caplan
Tommy Wu, Shire Trading Ltd., Hong Kong,
Evan Caplan
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Research & News
Micro-World
Six-Rayed Star in Sapphire from Myanmar
A Burmese sapphire shows a celestial scene both externally and internally.
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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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Lab Notes
Unusual Orange Pyrope-Spessartine-Grossular Garnet
A garnet proves to have a much higher grossular component than initially expected.
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Microworld
Opal with Agate-Like Banding
An orangy brown opal from Ethiopia displays a small patch of wavy "varve" banding, unusual for this type of gem.
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Gem News International
Irradiated and Annealed Blue Type Ia Diamond
Examination shows that a diamond was subjected to a multi-step process in order to introduce a blue color.
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Lab Notes
Cat's-Eye Demantoid and Andradite with Horsetail Inclusions
Two unusual garnets receive identifications issued for the first time in GIA's colored stone report records.
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