See Gem As
Tools
Research
CVD “Etch” Channel
The first report of an etch channel–like structure in a CVD laboratory-grown diamond submitted to GIA.
Misfit Diamonds: Beauty in the Imperfect
Unusual diamonds with eye-visible inclusions are gaining popularity in the market.
The Identification of Artificial Coloration in Diamond
The source of color in some diamonds, particularly fluorescent green and some yellow stones, can be very difficult to identify despite increasing knowledge about the radiation-related bands seen in the visible spectra of diamonds.
Summer 1991 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
Nano-Polycrystalline Diamond Sphere: A Gemologist’s Perspective
Synthetic nano-polycrystalline diamond is one of the latest and most exciting results of scientific efforts to synthesize a mineral that has held the fascination of humankind for ages.
Spring 2010 Gem News International
Spring 2011 G&G; Lab Notes
Buff-Top Round Diamond
The New York lab recently examined several diamonds with an interesting variation on the cabochon.
Winter 1984 G&G; Lab Notes
Spring 1996 G&G Lab Notes
This section, from the Spring 1996 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Spring 1997 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
Spring 1997 G&G; Lab Notes
This section, from the Spring 1997 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
