Media & Coverage

Gemological Science International (GSI) is a global gemological organization serving leading jewelry manufacturers, retailers, and world-class jewelry chains across the U.S., Europe, Asia, and the Middle East. GSI specializes in jewelry certification, customized diamond and gemstone reports, screening, testing and fulfillment—delivered at scale and tailored to client needs. Trusted by the trade and featured in major media outlets including Bloomberg, CBS, Fox, and NASDAQ, GSI is recognized for accuracy, efficiency, and industry leadership.

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