Arizona’s scenic desert and mountain landscape is the perfect backdrop for a modern Wild West road trip in search of gem and mineral treasures.
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GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.
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A stone submitted for identification is revealed to be the first wurtzite examined by the GIA lab.
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Revival jewellery is inspired by the past – and wearing it connects us to the rich history of the beginning of civilisation.
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The discovery of diamonds in South Africa in early 1867 marked the start of an historic period of diamond exploration.
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A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
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DeBeers responds to fluctuations, and the FTC issues warnings on laboratory-grown diamonds. Plus: 302.37 ct Graff Lesedi La Rona is revealed.
Read MoreThe California gold rush − the largest gold rush in the history of the world − changed the social, economic, political and cultural history of the American West.
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A look back at the groundbreaking research of G. Robert Crowningshield
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A childhood love of gems and minerals led to the transformation of GIA's library and to a lasting reputation of excellence.
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