Feature Gems & Gemology, Spring 1990, Vol. 26, No. 1

Gem Localities of the 1980s

James E. Shigley, Dona Mary Dirlam, 和 Karl Schmetzer, and E. Alan Jobbins

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The 1980s saw major developments in new sources for diamonds and colored stones, as well as expanded production at many existing mines. This article identifies important new discoveries, as well as localities that were major gem producers, during the decade. Brief descriptions are provided for many of these, and their impact on the jewelry industry is reviewed. The article also provides an index to key recent publications on these occurrences.