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Topaz with mystery inclusion.
Quarterly Crystal: Mystery in Topaz

A topaz hosting a group of inclusions is examined in the Carlsbad lab.

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This andalusite from Minas Gerais, Brazil weighs 2.87 ct. This image (left) shows direct lighting, which is not ideal for bringing out the transparent gemstone's rich pleochroic colors. Instead, the direct lighting seems to darken the stone and creates
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Photography Tips: A Gem’s Best Face Forward

Everyone would agree that exposure and focus are the most critical aspects to consider when photographing gems or jewellery. But there are two other practices that take this kind of photography even further: lighting and positioning of the gem or jewel. The first component ensures a successful photograph. The second makes a picture interesting – or even compelling.

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Books: Geology of Gem Deposits, Second Edition
Books: Geology of Gem Deposits, Second Edition

Review of Geology of Gem Deposits, Second Edition, by L.A. Groat.

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Summer 2012 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 2011 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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Pumpellyite in Quartz
Autumn 2009 G&G Lab Notes

This section, from the Autumn 2009 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

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Spring 2008 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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Summer 2008 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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Summer 2007 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 2007 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.

Read More