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Opal
Fireworks. Jellyfish. Galaxies. Lightning. Opal's shifting play of kaleidoscopic colors is unlike any other gem.
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Fall 1983 G&G; Lab Notes
This section, from the Fall 1983 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Fall 1995 Gem News International
Abstracts; Summer 2010
Abstracts; Winter 2009
This article, from the Winter 2009 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
Summer 2008 Gem News International
Summer 2003 G&G; Lab Notes
This section, from the Summer 2003 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Fall 1981 G&G; Lab Notes
Fall 2001 G&G Lab Notes
This section, from the Fall 2001 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Fall 2003 G&G; Lab Notes
Fall 2004 G&G; Lab Notes
This section, from the Fall 2004 issue of Gems & Gemology, is a compilation of interesting finds from GIA's laboratories.
