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.
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.
An Update on Sumitomo Gem-Quality Synthetic Diamonds
Both crystal morphology and size can greatly affect the properties observed in a synthetic diamond.
The Wittelsbach-Graff and Hope Diamonds: not cut from the same rough
Two historic blue diamonds, the Hope and the Wittelsbach-Graff, appeared together for the first time at the Smithsonian Institution in 2010.
Recent Discoveries of Large Diamonds in Trinity County, California
In the early 1980s four diamonds were recovered from the stream gravels of Hayfork Creek in Trinity County, California; all four are of industrial grade and all have an interesting feature in common.