Taijin Lu (“NGTC laboratory”, China)
- Date: May 13, 2021
- Length: 1h 17m
China is the world’s largest producer of industrial and gem-quality synthetic diamonds, particularly HPHT-grown products. In the past several years, Chinese synthetic diamonds have become a hot topic for research both in China and abroad. In this lecture, the development of Chinese synthetic diamonds is reviewed, meanwhile the production technology, product quality and output of various Chinese companies producing gem-quality HPHT- and CVD-grown synthetic diamonds are summarised. Especially, the ‘hybrid diamonds’ comprised of natural diamond with a CVD overgrowth is introduced, and the growth technology and identification methods of ‘hybrid diamonds’ are also addressed. In addition, the development of diamond-detection methods and devices by NGTC laboratories is briefly discussed.
Dr. Lu Taijin is chief scientist of the National Gems & Jewelry Technology Administrative Center (National Gemstone Testing Center, NGTC). After graduating from China University of Geosciences (Wuhan) in 1982, he received a doctorate in mineralogy from Tohoku University in Japan in 1989. Prior to joining NGTC in 2009, he had 30 years experience in gem research and identification, mineralogy, as well as materials science, with RIKEN, Japan, National University of Singapore, and Gemological Institute of America (GIA). He is author of more than 200 gemological and other scientific articles, and an internationally known gemologist. In recent years, he and his team have been performing studies on synthetic diamonds