Spring 1994 Gem News International

Diamonds
Cubic Zirconia Misrepresented as Diamond
Colored Stones
Jade-Cutting Factory on the Myanmar-Thai Border
Enhancements
Instability of Diamond Filling
Coated Sapphires Misrepresented as Diffusion Treated
TUCSON ‘94
Colored Stones and Organic Material
Arizona Gem Materials
Emeralds from Brazil
"Jurassic Park" Gems and Carvings
Gems from Madagascar
Myanmar Gems
More on Obsidian
Cat's-Eye Opal from Brazil
Opal from Ethiopia
Miscellaneous Notes on Peridot
Russian Uvarovite Garnet
Other Russian Materials
Rubies and Other Gems from Orissa
Miscellaneous Notes on Tourmaline
Enhancements
Update on Diffusion Treatment
Synthetics and Simulants
Beryl Triplets
Chatham Flux-Grown Pink Synthetic Sapphires
Douros Synthetic Rubies
More on Russian Synthetics and Simulants

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