Inside De Beers’ Lightbox Diamonds
GIA researcher analyses and confirms that De Beers’ Lightbox diamonds are grown using the chemical vapour deposition process.
CVD Synthetic Diamonds from Gemesis Corp
An examination of the gemmological and spectroscopic properties of CVD synthetic diamonds from Gemesis Corp.
Recent Advances in CVD Synthetic Diamond Quality
A survey of recent advances in CVD synthetic diamond quality.
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.
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.
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.
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.
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.
Age, Origin and Emplacement of Diamonds: Scientific Advances in the Last Decade
Although certain concepts about the age and formation of diamonds have been known for some time, this overview of advances over the decade leading up to the early 1990s have expanded the scientific understanding of this fascinating topic exponentially.
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.