The Gemological Institute of America (GIA) has further underscored the importance of modern and reliable devices that can accurately identify synthetic diamonds.
At a seminar on the sidelines of the September Hong Kong Fair at the AsiaWorld-Expo, Dr. Wuyi Wang, director of Research and Development at GIA, spoke about tremendous advances in synthetic diamond development over the years, which further reinforce the role of gemmological laboratories in synthetic diamond detection.
He talked about developments in CVD (Chemical Vapor Deposition) and HPHT (High Pressure / High Temperature) synthetic diamonds as well as GIA’s latest device that tests mounted melee diamonds.
On the HPHT front, he said Russia’s New Diamond Technology constantly develops synthetic diamonds, and is beginning to employ more sophisticated production processes. Wang also cited a similar HPHT diamond production capability in China, noting that around 1,000 presses in China are used for diamond synthesis.
Singapore, meanwhile, is a major CVD-grown diamond producer. Dr. Wang also talked about the new GIA iD100TM screening device for melee diamonds. The device uses sophisticated spectroscopy technology to distinguish natural diamonds – either loose or mounted – from synthetics and simulants. The operator simply points the probe at a diamond, and the result is given within two seconds.