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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 1994, Volume 30, Issue 4

 

EDITORIAL

Gems & Gemology: Sixty Years of History and History-Making p.219
Richard T. Liddicoat

FEATURE ARTICLES

Color Grading of Colored Diamonds in the GIA Gem Trade Laboratory p.220-p.242
John M. King, Thomas M. Moses, James E. Shigley, and Yan Liu

NOTES AND NEW TECHNIQUES

Ruby and Sapphire from the Southern Ural Mountains, Russia p.243-p.252
Alexander J. Kissin
Gem Corundum in Alkali Basalt: Origin and Occurrence p.253-p.262
A.A. Levinson and F.A. Cook

REGULAR FEATURES

Gem Trade Lab Notes p.264-p.270
Gem News p.271-p.280
Book Reviews p.281

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