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Back Issues

Back issues of Gems & Gemology may be purchased individually, or save by buying one-, three-, or five-year sets. Use our online order form or contact our Subscriptions/Back Issues Office at dortiz@gia.edu. Call toll-free nationwide 800-421-7250, ext. 7142. Outside the U.S., call 760-603-4000, ext. 7142.

Winter 1993, Volume 29, Issue 4

 

FEATURE ARTICLES

The Gemological Properties of Russian Gem-Quality Synthetic Yellow Diamonds p.228-p.248
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 p.250-p.272
John L. Emmett and Troy R. Douthit

NOTES AND NEW TECHNIQUES

Garnets from Altay, China p.273-p.277
Fuquan Wang and Yan Liu

REGULAR FEATURES

Gem Trade Lab Notes p.278-p.284
Gem News p.285-p.296
Book Reviews p.297-p.298

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