The PDF version of this issue is available at no charge. Visit www.gia.edu
An Economic Review of the Past Decade in Diamonds
William E. Boyajian
The Sapphires of Penglai, Hainan Island, China
A Gem-Quality Iridescent Orthoamphibole from Wyoming
R. V. Dietrich, John Sampson White, Joseph E. Nelen, and Kwo-Ling Chyi
Detection of Treatment in Two Unusual Green Diamonds
Emmanuel Fritsch, James E. Shigley, Carol M. Stockton, and John I. Koivula
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout.
Usually ships in 3-5 business days.