For the first time, the Carlsbad and New York labs see natural sapphire seeds with synthetic ruby overgrowth.
Read More
A sapphire with a colour not commonly seen in the lab is found to have a glass filling.
Read More
GIA examines a multi-elemental diffused and melt-grown synthetic sapphire for the first time.
Read More
G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
Read MoreThis section, from the Summer 1992 issue of Gems & Gemmology, is a compilation of interesting finds from GIA's laboratories.
Read More
This section, from the Summer 2010 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Summer 2008 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Summer 2004 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Summer 2003 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Summer 2002 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read More
