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Fall 1998, Volume 34, Issue 3

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Gem Trade Lab Notes


  • BERYL, Plastic-Coated Assemblage Imitating Trapiche Emerald
  • CHRYSOBERYL, Dark Green
  • DIAMOND
  • Color Treated from Orangy Yellow to Reddish Purple
  • Raman Analysis of Inclusions
  • Bicolored GLASS
  • SYNTHETIC MOISSANITE, Submitted for Diamond Grading
  • PEARLS, Freshwater Cultured
  • QUARTZ: A Large 'Crystal Ball'
  • RUBY, with a True Double Star

Editors:
Thomas Moses, Ilene Reinitz, Shane F. McClure - GIA Gem Trade Laboratory

Contributing Editors:
G. Robert Crowningshield - GIA Gem Trade Laboratory, East Coast
Karin Hurwit - GIA Gem Trade Laboratory, West Coast
Mary L. Johnson - GIA Gem Trade Laboratory, West Coast
Cheryl Y. Wentzell - GIA Gem Trade Laboratory, West Coast


Appears on pages 212-217

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