ICGL first newsletter was released at Tucson Gem show 2013.
PDF version can be downloaded from next link.
International Consortium of Gem testing Labotories
By John Richoz,
Asian Institute of Gemological Sciences, Bangkok, Thailand
Screening and identification of diamonds for the synthetic origin using the uv lamp and the polarioscope mounted on a microscope
By Branko Deljanin, B.Sc., GG, FGA, DUG
Canadian Gemological Laboratory inc, Vancouver, Canada
Identification of natural, treated, synthetic and treated-synthetic yellow sapphire by feather type inclusions
By Jayshree Panjikar
Pangem Testing Laboratory, PANGEMTECH – Panjikar Gem Research & Tech Institute, Pune, India
Trading of Jadeite-Jade in Mandalay, Myanmar
By Tay Thye Sun & Tay Kun Ming
Far East Gemological Laboratory, Singapore