GIA researcher analyses and confirms that De Beers’ Lightbox diamonds are grown using the chemical vapour deposition process.
Read More
An examination of the gemmological and spectroscopic properties of CVD synthetic diamonds from Gemesis Corp.
Read More
A survey of recent advances in CVD synthetic diamond quality.
Read MoreHigh-quality CVD-grown diamonds, comparable in colour and clarity to natural diamonds, can be identified using a combination of gemmological and spectroscopic properties.
Read MoreThis article presents information about the CVD process, the history of its development, and properties that differentiate the resulting synthetic crystals from natural diamond.
Read MoreBrown-to-grey and near-colourless single-crystal type IIa synthetic diamonds grown.
Read MoreGreenish 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.
Read MoreDe Beers has produced a faceted synthetic gem-quality diamond that could go unrecognised without careful gemmological testing.
Read More
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.
Read More
Examination of a group of 14 brownish yellow, yellow and greenish yellow synthetic diamonds reveals distinctive gemmological properties.
Read More
