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Faceted CVD Synthetic Diamonds
CVD Synthetic Diamonds from Gemesis Corp

An examination of the gemmological and spectroscopic properties of CVD synthetic diamonds from Gemesis Corp.

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Abstract Header from the 2009 issue of Gems & Gemology
Abstracts; Summer 2009

This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

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

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

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Gem-Quality Synthetic Diamonds Grown by a Chemical Vapour Deposition (CVD) Method

Brown-to-grey and near-colourless single-crystal type IIa synthetic diamonds grown.

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Identification of HPHT-Treated Yellow to Green Diamonds

Greenish yellow to yellowish green HPHT-treated diamonds exhibited highly saturated body colour, well-defined brown to yellow octahedral graining and visual evidence of heating, among other characteristics.

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Rough Synthetic Gem-quality Diamond Crystals
Identifying Gem-Quality Synthetic Diamonds: An Update

Synthesised gem-quality diamonds from the General Electric Company are analysed for characteristics that distinguish them from natural stones.

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11.14-ct Synthetic Diamond Crystal
The Gemmological Properties of the De Beers Gem-Quality Synthetic Diamonds

Examination of a group of 14 brownish yellow, yellow and greenish yellow synthetic diamonds reveals distinctive gemmological properties.

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0.20 ct CVD synthetic diamond pendant
Recent Advances in CVD Synthetic Diamond Quality

A survey of recent advances in CVD synthetic diamond quality.

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Identification of Synthetic Diamond Grown Using Chemical Vapour Deposition (CVD)

This article presents information about the CVD process, the history of its development, and properties that differentiate the resulting synthetic crystals from natural diamond.

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Latest-Generation CVD-Grown Synthetic Diamonds from Apollo Diamond Inc.

High-quality CVD-grown diamonds, comparable in colour and clarity to natural diamonds, can be identified using a combination of gemmological and spectroscopic properties.

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