Gemological Science International (Gsi)
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581 5th Ave
New York, NY 10017
Gemological Science International (GSI) is a leading organization in the field of gemology, specializing in providing comprehensive grading services for diamonds and colored gemstones. With a commitment to excellence, GSI ensures that every gem receives a rigorous analysis, offering clients confidence in their purchases.
Based in New York, NY, GSI employs advanced technology and expert gemologists to uphold the highest standards of quality and integrity in the gem certification process. Their mission is to enhance consumer education and trust in the jewelry industry through transparent and reliable evaluations.
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