Fall 2020

Feature articles from this issue:

• Natural-Color D-to-Z Diamonds: A Crystal-Clear Perspective by Sally Eaton-Magaña, Troy Ardon, Christopher M. Breeding, and James E. Shigley

• Inclusion and Trace Element Characteristics of Emeralds from Swat Valley, Pakistan by Hongshu Guo, Xiaoyan Yu, Yuyu Zheng, Zhulin Sun, and Miro Fei-Yeung Ng

• A History of European Royal Jewel Sales, Including Sotheby’s 2018 Auction of Marie Antoinette’s Jewels by Russell Shor

• Unique Raindrop Pattern of Turquoise from Hubei, China by Ling Liu, Mingxing Yang, and Yan Li

• Vietnam: Shell Nuclei, Pearl Hatcheries, and Pearl Farming by Nicholas Sturman, Kwanreun Lawanwong, Nuttapol Kitdee, and Devchand Chodhry

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