Pink CVD lab-grown products can be separated from natural and treated-colour natural pink diamonds by a combination of gemmological and spectroscopic properties, which are explored in this study.
Read MoreThis article compares some of Chatham Created Gems’ synthetic coloured diamonds to natural diamonds and explains the results.
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Despite the generally strong year for jewellery retail, the diamond industry continues to face problems with credit, patchy demand and soft prices.
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Decent demand for finished jewellery, but less for loose gems. Plus: Lab-grown diamonds and responsible, sustainable business practices.
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A cape diamond examined in the New York lab shows rare yellow phosphorescence.
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This section, from the Summer 2009 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Spring 2010 issue of Gems & Gemology, is a compilation of interesting finds from GIA's laboratories.
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This section, from the Winter 2010 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Spring 1992 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Winter 1993 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
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