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Titanium-coated tanzanite
Titanium-Coated Tanzanite

For the first time, GIA's laboratory has examined tanzanite colour-coated with titanium.

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Winter 2003 G&G Lab Notes

This section, from the Winter 2003 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

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Summer 2003 G&G Lab Notes

This section, from the Summer 2003 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

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Summer 1999 G&G Lab Notes

This section, from the Summer 1999 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

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