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AGS Themes

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The American Gem Society was established in 1934 by a group of independent jewelers and Robert M. Shipley, founder of the prestigious Gemological Institute of America (GIA).
Clarity, color and carat weight are three Cs of diamond value easily explained and understood by most diamond shoppers. However, one of the most confusing aspects of shopping for a diamond can be recognizing the difference between cut and shape.
Gemology, the study of gems, is recognized today as a specialized and legitimate discipline. Over time, diligent scientific research has provided numerous advances and sophisticated technologies.
As a member of the American Gem Society (AGS), we believe that the best way to attract customers is to educate them.
Since its founding by Robert M. Shipley in 1934, the American Gem Society has been setting standards for excellence.
Robert M. Shipley organized the American Gem Society in 1934 More than seven decades later, the Society still operates on two primary purposes: