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GIA's Gübelin Gem Project: Various Gems, Barite - Cuprite

Among the collection assembled by Dr Edward Gübelin are a number of uncommon gemstones from many worldwide localities.

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Alexandrite cabochon in fluorescent (left) and incandescent light (right).
Cat’s-Eye Alexandrite with Unique Inclusion Pattern

Examination of a chatoyant alexandrite cabochon.

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Spring 2004 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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Brecciated Pyrite
Spring 1991 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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Spring 1988 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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Autumn 1995 G&G Lab Notes

This section, from the Autumn 1995 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Winter 1987 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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Spring 1987 Gem News International

A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.

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Autumn 1988 G&G Lab Notes

This section, from the Autumn 1988 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Autumn 1987 G&G Lab Notes

This section, from the Autumn 1987 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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