Color Quantification: A Spectrographic Imaging Approach
Donna Beaton
Rare Reverse Color Change in a Blue Zircon from Myanmar (Burma)
George Bosshart and Walter A. Balmer
Social, Political, Economic, and Gemological Impacts on Pricing Trends
Richard B. Drucker
Luminescence of the Hope Diamond and Other Blue Diamonds
Sally Eaton-Magaña, Jeffrey E. Post, Jaime A. Freitas Jr., Paul B. Klein, Roy A. Walters, Peter J. Heaney, and James E. Butler
Elbaite from the Himlaya Mine, Mesa Grande, California
Andreas Ertl, George R. Rossman, John M. Hughes, Ying Wang, Julie O’Leary, M. Darby Dyar, Stefan Prowatke, and Thomas Ludwig
A Close Look at Gemstone Color Grading: Definition of the Key Color
Yulia Grozman
Natural “CO2-rich” Colored Diamonds
Thomas Hainschwang, Franck Notari, Emmanuel Fritsch, Laurent Massi, Christopher M. Breeding, and Benjamin Rondeau
Genetic Classification of Mineral Inclusions in Quartz
Jaroslav Hyrsl
The Hkamti Jadeite Mines Area, Sagaing Division, Myanmar (Burma)
Robert E. Kane and George E. Harlow
Identification of Pigments in Freshwater Cultured Pearls with Raman Scattering
Stefanos Karampelas, Emmanuel Fritsch, Spyros Sklavounos, and Triantafyllos Soldatos
Quantifiable Cut Grade System within an Educational Setting
Courtenay Keenan, Mike Botha, and Robert Ward
Monochromatic X-Ray Topographic Characterization of Pezzottaite with Synchrotron Radiation
Shang-i Liu, Ming-sheng Peng, and Yu-fei Meng
Universal Color Grading System
Yan Liu
Chameleon Diamonds: A Proposed Model to Explain Thermochromic and Photochromic Behaviors
Laurent Massi, Emmanuel Fritsch, George R. Rossman, Thomas Hainschwang, Stéphane Jobic, and Rémy Dessapt
Source Type Classification of Gem Corundum
Shane F. McClure
Color Communication: The Analysis of Color in Gem Materials
Menahem Sevdermish
Sapphires from Ban Huai Sai, Laos
Sutas Singbamroong, Abdalla Abdelqadir Yousif, and Theerapongs Thanasuthipitak
Fancy-Color Diamonds: Better Color Appearance by Optimizing Cut
Sergey Sivovolenko and Yuri Shelementiev
European Freshwater Pearls: Origin, Distribution, and Characteristics
Elisabeth Strack
Developing Corundum Standards for LA-ICP-MS Trace-Element Analysis
Wuyi Wang, Matthew Hall, Andy H. Shen, and Christopher M. Breeding
