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GSI: Offering Diamond & Jewelry Confidence Gemological laboratories are an essential part of the diamond industry. They provide the necessary certification and testing of diamonds and jewelry. Jewelry retailers rely on Gemological Science International (GSI) as an independent third party to ensure the jewelry they sell is accurately represented. This gives consumers of diamonds and jewelry confidence in their purchases. GSI offers a look inside its state-of-the-art laboratory, showing how diamon

GSI is a globally renowned gemological organization that offers a myriad of services to the diamond and jewelry industry including grading reports and services for diamonds (both natural and laboratory-grown), colored gemstones, and jewelry. GSI is the leader in the testing and detection of undisclosed laboratory-grown diamonds in finished jewelry. The company also offers a variety of educational programs to the trade and has a dedicated internationally recognized team of researchers, scientists

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