Trace-element analysis is used to identify metamictisation, treatment and growth conditions of zircon.
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Colour modification is observed in a reddish orange zircon at the Bangkok laboratory.
Read MoreThis section, from the Winter 2011 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Spring 2008 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Spring 2003 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Summer 1997 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Winter 1995 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Autumn 1992 issue of Gems & Gemology, is a compilation of interesting finds from GIA's laboratories.
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This section, from the Summer 1991 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Summer 1989 issue of Gems & Gemmology, is a compilation of interesting finds from GIA's laboratories.
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