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Gemological Science International is an independent gemological laboratory that provides professional gemstone identification, grading and appraisal services to the fine jewelry industry. GSI has re-engineered the processing paths for gem I.D. and grading, which has resulted in higher levels of productivity and reduced costs. These cost efficiencies are passed on to our customers and ultimately to consumers. This means that more consumers can afford the benefits of having a grading report for their gemstones, including low-cost items. GSI markets its grading services mainly to large manufacturers, major jewelry chains, department stores, and online jewelers in USA & INDIA.