Book: Laboratory-grown Diamonds by Branko Deljanin, GHI Research, and Dusan Simic, GHI India (2007 Second Edition, published by GHI). Price: Ind. Rs. 800/-
Quarterly Newsletter: Latest news on trade events, identification of gems and new developments in research from GHI labs in North America and India.
Educational Kits on Treated and Synthetic Diamonds: Set of one to six synthetic, HPHT treated or irradiated diamonds, light to vivid colour saturation and SI to I clarity. These kits come with description and identification cards for each laser-inscribed stone.