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Showing 38 results for "chameleon diamonds"
People meet and mingle at the entrance to the JCK Show.
Article
Headwinds Slow 2019 Vegas Business, Lab-grown Diamonds Proliferate

Decent demand for finished jewellery, but less for loose gems. Plus: Lab-grown diamonds and responsible, sustainable business practices.

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Autumn 1993 G&G Lab Notes

This section, from the Autumn 1993 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Summer 1993 G&G Lab Notes

This section, from the Summer 1993 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

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Winter 1989 G&G Lab Notes

This section, from the Winter 1989 issue of Gems & Gemmology, is a compilation of interesting finds from GIA's laboratories.

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Autumn 1986 G&G Lab Notes

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

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Summer 2000 G&G Lab Notes

This section, from the Summer 2000 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

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Metmict Zircon
Summer 1991 G&G Lab Notes

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

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Winter 2006 G&G Lab Notes

This section, from the Winter 2006 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

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Winter 1990 G&G Lab Notes

This section, from the Winter 1990 issue of Gems & Gemmology, is a compilation of interesting finds from GIA's laboratories.

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Amber-in-Plastic Bead
Autumn 1983 G&G Lab Notes

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

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