A phenomenon usually seen in Colombian emeralds is found in a specimen from Zambia.
Read MoreAn emerald with drill holes containing a resinous material is seen in the New York lab.
Read MoreAn emerald with strong colour zoning along the pavilion facets demonstrates the importance of cutting and orientation in gem materials.
Read MoreA report on a 1.17 ct emerald obtained in Kabul, Afghanistan for GIA's permanent reference collection
Read MoreThis section, from the Summer 1992 issue of Gems & Gemmology, 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 Summer 1993 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.
Read MoreThis section, from the Summer 1988 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Summer 1983 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
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