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Pearl
Perfect shining spheres. Lustrous baroque forms. Seductive strands, warm to the touch. Pearls are simply and purely organic.
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Research
Calcite Present in a Pearl from Pinctada maculata
Examination of a Pinctada maculata pearl reveals an interesting columnar calcite surface structure.
A Melee-Sized CVD Synthetic Diamond in Pearl and Diamond Jewelry
Winter 1994 G&G; Lab Notes
This section, from the Winter 1994 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Winter 1995 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.
Winter 1996 G&G Lab Notes
This section, from the Winter 1996 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Winter 2006 G&G Lab Notes
This section, from the Winter 2006 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Identification of Irradiated South Sea Cultured Pearls Using Electron Spin Resonance Spectroscopy
Irradiated South Sea cultured pearls (SSCPs) from the Pinctada maxima mollusk typically show colors from light gray to silver.
Winter 1990 G&G; Lab Notes
This section, from the Winter 1990 issue of Gems & Gemology, is a compilation of interesting finds from GIA's laboratories.
Winter 1991 G&G; Lab Notes
Winter 1989 G&G Lab Notes
This section, from the Winter 1989 issue of Gems & Gemology, is a compilation of interesting finds from GIA's laboratories.
