New issue of ICGL newsletter is released on 30th January 2016.
PDF version can be downloaded from next link.
Testing and screening of melee-sized nearcolorless HPHT synthetic diamonds
using a multi-spectral induced luminescence imaging system (GV5000) in China
Taijin Lu, Yan Lan, Rong Liang, Congshen Zhang
National Gemstone Testing Center (NGTC)
Identification of Dye-treated Golden South Sea Pearls
Kook-Whee Kwak, Jong-Kyu Lee, and Eun-Ah Jeong
Wooshin Gemological Institute of Korea
Treated blue diamond
Tay Thye Sun & Loke Hui Ying
Far East Gem Lab, Singapore
Symposium on Diamond: “Advances in Technology & Detection”
Introducing ICGL Member from Australia: Mr Bill Sechos