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Lomonosov yields fancy colours – purplish pink, violet, green, yellow and brown – and a high percentage of gem-quality colourless (D-to-Z) diamonds.
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The Argyle diamond mine is the only known source of type IaB hydrogen- and nitrogen-rich diamonds coloured grey to blue to violet.
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G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
Read MoreDiamond production’s future appears to belong less to Africa and more to Australia, Canada and the Russian Federation, according to this overview of geologic trends in the industry.
Read MoreThis section, from the Autumn 2000 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
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This article, from the Autumn 2009 issue of Gems & Gemology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemology.
Read MoreThis article, from the Autumn 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemology.
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