The first known group of colour-change gem-quality chrome grossular garnet, reportedly from Ethiopia, is examined in GIA’s Carlsbad lab.
Read MoreThese red, pink and orange hued gems evoke passion and excitement – and are sure-fire accessories for sultry summer days.
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A colour change in rough garnet is observed and plotted in GIA’s Carlsbad lab.
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Çiğdem Lüle uses her expertise to teach about the gem market and develop the multidisciplinary research subject of archaeo-gemmology.
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A summary of the content found in the Summer 2016 issue of Gems & Gemology.
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G&G Brief presents an overview of the content of the Winter 2015 issue of Gems & Gemology.
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Profiles interesting and attractive garnet, believed to have been mined in Tanzania, that shows a noticeable colour difference under incandescent and daylight-equivalent light.
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How to examine a sapphire crystal for cracks and inclusions.
Read MoreA 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 MoreA 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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