American Gem Society Labs

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AGS Laboratories is one of the world s premier diamond grading laboratories for diamond cut and offers a diamond cut grading for fancy shapes, including princess, emerald and oval cut diamonds. It is associated with the retail members of the American Gem Society, which is a group of more than 1,200 jewelry retailers in Canada and the United States. AGS Laboratories provides a variety of diamond grading reports to suit the individual requirements of diamond manufacturers and their customers, retail jewelers and retail consumers. The laboratory screens every diamond for potential treatments, such as high pressure temperature, fracture filling and laser drilling.