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Alexandrite, History
Article
Alexandrite History and Lore

The gem was named after the young Alexander II, heir apparent to the throne. It caught the country’s attention because its red and green colours mirrored the Imperial Russian flag.

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A large group of people outside on GIA’s Carlsbad, California  campus.
Article
Guardians of Trust: GIA’s Innovative Research, Instruments and Services

GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.

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Large moissanite crystal
Record-Size Natural Moissanite Crystals Discovered in Israel

Natural moissanite crystals found in Israel has broken world records, with evidence of larger crystals in the area.

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Confusing, Triangular Inclusions in an Art Deco-Style Pin
Spring 1991 G&G Lab Notes

This section, from the Spring 1991 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

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Russian Flux-Grown Synthetic Alexandrite

Synthetic alexandrite is being flux-grown in Russia.

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Gemstones with Alexandrite Effect

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

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