The quarterly journal of the gemological institute of america
EDITORIAL
Baw Mar Sapphire, China’s Freshwater Pearl Industry, Glass-Ceramic Imitation Gemstones, and Red and Orange Spinel from Myanmar and Vietnam
Duncan Pay, Editor-in-Chief
An overview of the Summer 2026 Gems & Gemology content.
Articles
More Coming Soon...
Characterization of Red and Orange Spinel from Myanmar and Vietnam
Examines the gemological properties of red and orange spinel from Mogok, Myanmar, and Lang Chap and An Phu in Vietnam, using trace element chemistry to evaluate geographic origin.
Regular Features
GEM NEWS INTERNATIONAL
Global coverage of gem sources, notable new gem materials, and recent industry developments.
THE DR. EDWARD J. GÜBELIN
Most Valuable Article Awards
Structures Behind the Spectacle: A Review of Optical Effects in Phenomenal Gemstones and Their Underlying Nanotextures
Shiyun Jin, Nathan D. Renfro, Aaron C. Palke, and James E. Shigley
A Study of the Winston Red: The Smithsonian’s New Fancy Red Diamond
Gabriela A. Farfan, Ulrika F.S. D’Haenens-Johansson, Stephanie Persaud, Eloïse Gaillou, Russell C. Feather II, W. Henry Towbin, and Daniel C. Jones
The 3309 cm–1 Series in Sapphire and Ruby: A Focus on FTIR Peak Position Variation
Wasura Soonthorntantikul and Aaron C. Palke
THE ARCHIVE
PAST GEMS & GEMOLOGY ISSUES
summer 1999
Volume 35, Issue 2
fall 1999
Volume 35, Issue 3
winter 1999
Volume 35, Issue 4
fall 2000
Volume 36, Issue 3
winter 2000
Volume 36, Issue 4
