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For more information about GSI, please contact us at:

USA Headquarters:
Gemological Science International
581 Fifth Avenue, 4th Floor,
New York, NY 10017
USA
Phone: 212-207-4140
Fax:       212-207-4156
EFax:    917-591-8708
E-mail

GSI - India
4th Floor, Sanghrajka House,
Beside IndusInd Bank,
Dr.D.B.Marg, Opera House,
Mumbai 400 004
India
Phone: +91 (022) 66101758-59
Fax:       +91 (022) 66101683
E-mail

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