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Meredith E. Mercer
Diamond Sources and Production: Past, Present, and Future
Alfred A. Levinson, John J. Gurney and Melissa B. Kirkley
Sapphires from Changle in Shandong Province, China
Jingfeng Guo, Fuquan Wang, and Gerry Yakoumelos
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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