Article Search Results

Show Filters
Showing 16 results for "*"
Alexandrite cabochon in fluorescent (left) and incandescent light (right).
Cat’s-Eye Alexandrite with Unique Inclusion Pattern

Examination of a chatoyant alexandrite cabochon.

Read More

Autumn 1995 G&G Lab Notes

This section, from the Autumn 1995 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Autumn 1988 G&G Lab Notes

This section, from the Autumn 1988 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Autumn 1987 G&G Lab Notes

This section, from the Autumn 1987 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Spring 1995 G&G Lab Notes

This section, from the Spring 1995 issue of Gems & Gemmology, is a compilation of interesting finds from GIA's laboratories.

Read More

Confusing, Triangular Inclusions in an Art Deco-Style Pin
Spring 1991 G&G Lab Notes

This section, from the Spring 1991 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Spring 1986 G&G Lab Notes

This section, from the Spring 1986 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Summer 2004 G&G Lab Notes

This section, from the Summer 2004 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Autumn 2005 G&G Lab Notes

This section, from the Autumn 2005 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Spring 1999 G&G Lab Notes

This section, from the Spring 1999 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More