• Winter 1993

Winter 1993

  • $15.00

The PDF version of this issue is available at no charge. Visit

The Gemological Properties of Russian Gem-Quality Synthetic Yellow Diamonds
James E. Shigley, Emmanuel Fritsch, John I. Koivula, Nikolai V. Sobolev, Igor Y. Malinovsky, and Yuri N. Pal'yanov

Heat Treating the Sapphires of Rock Creek, Montana
John L. Emmett and Troy R. Douthit

Garnets from Altay, China
Fuquan Wang and Yan Liu
1993 Annual Index

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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SKU: 93w