Gems and Gemology vol.48 no.2 2012

Transparency and Synthetic Diamonds

Jan Iverson

CVD Synthetic Diamonds from Gemesis Corp.

Wuyi Wang, Ulrika F. S. D’Haenens-Johansson, Paul Johnson, Kyaw Soe Moe, Erica Emerson, Mark Newton, and Thomas M. Moses

Sapphires from Thammannawa, Kataragama Area, Sri Lanka

Pannipitiye G. R. Dharmaratne, H. M. Ranjith Premasiri, and Dayananda Dillimuni

Cultured Pearl Farming and Production in the Federated States of Micronesia

Laurent E. Cartier, Michael S. Krzemnicki, and Masahiro Ito

Recent Advances in CVD Synthetic Diamond Quality

Sally Eaton-Magaña, and Ulrika F. S. D’Haenens-Johansson

Nano-Polycrystalline Diamond Sphere: A Gemologist’s Perspective

Elise A. Skalwold