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Jewelry Terminology
Enhancement Treatments
Faceted Stone Parts
Gemology Organizations
The Classic Shapes
Two Basic Cutting Styles
Gemology Organizations

The parts of a faceted stone

GIA Gemological Institute of America
AGL American Gemological Laboratories
AGTA American Gem Trade Association
GTC Gemological Testing Center
EGL European Gemological Laboratory
AGS American Gem Society
HRD the Diamond High Council of Belgium
CIBJO International Confederation of Jewelry, Silverware, Diamonds, Pearls and Stones.
SSEF Swiss Foundation for the Research of Gemstones
Scan D.N Scandinavian Diamond Nomenclature.
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