Gem Nation -- Glossary of Diamond, Jewelry and Watch Terminology | ||
GIA The Gemological Institute of America (GIA) is one of the most well respected institutions for gemological research and learning. The GIA Gem Laboratory is a highly respected lab that provides detailed credentials on every diamond for which it produces a report. |
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Girdle The narrow rim around the diamond separating the crown and pavilion. The girdle is parallel to the table and is the largest diameter of any part of the stone. |
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Gold The oldest precious metal known to man. See also White Gold and Yellow Gold. |
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