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The Gemological Properties of Russian Gem-Quality Synthetic Yellow Diamonds

Russian-grown gem-quality synthetic diamonds are being sold for jewelry; this article presents the results of a gemological examination of a group of yellow samples.

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De Beers near Colorless-to-Blue Experimental Gem-Quality Synthetic Diamonds

De Beers has produced a faceted synthetic gem-quality diamond that could go unrecognized without careful gemological testing.

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Lab-Grown Colored Diamonds from Chatham Created Gems

This article compares some of Chatham Created Gems’ synthetic colored diamonds to natural diamonds and explains the results.

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Gemesis Laboratory-Created Diamonds

High-quality synthetic diamonds created by the Gemesis Corp. are examined and their gemological properties are explicated.

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