Sale
  • Cover of Gems & Gemology Summer 2020 issue, featuring two naturally colored orange diamonds surrounded by flower petals.

Summer 2020

  • $15.00

Feature articles from this issue:

  • Naturally Colored Yellow and Orange Gem Diamonds: The Nitrogen Factor by Christopher M. Breeding, Sally Eaton-Magaña, and James E. Shigley
  • Separation of Natural from Laboratory-Grown Diamond Using Time-Gated Luminescence Imaging by Colin D. McGuinness, Amber M. Wassell, Peter M.P. Lanigan, and Stephen A. Lynch
  • History of the Chivor Emerald Mine, Part II (1924–1970): Between Insolvency and Viability by Karl Schmetzer, Gérard Martayan, and Andrea R. Blake
  • Optical Whitening and Brightening of Pearls: A Fluorescence Spectroscopy Study  by Chunhui Zhou, Tsung-Han Tsai, Nicholas Sturman, Nanthaporn Nilpetploy, Areeya Manustrong, and Kwanreun Lawanwong
  • Hydrogen and Oxygen Stable Isotope Ratios of Dolomite-Related Nephrite: Relevance for its Geographic Origin and Geological Significance by Kong Gao, Ting Fang, Taijin Lu, Yan Lan, Yong Zhang, Yuanyuan Wang, and Yayun Chang

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SKU: 4302003