Global Rough Diamond Production since 1870
A.J.A. (Bram) Janse
Durability Testing of Filled Emeralds
Mary L. Johnson
Continuity and Change in Chinese Freshwater Pearl Culture
Doug Fiske and Jeremy Shepherd
Yellowish Green Diopside and Tremolite from Merelani, Tanzania
Eric A. Fritz, Brendan M. Laurs, Robert T. Downs, and Gelu Costin
Kyaw Soe Moe, Thomas M. Moses, and Paul Johnson
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
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