Contact Us

Mailing Address
GIA World Headquarters
The Robert Mouawad Campus
5345 Armada Drive
Carlsbad, CA 92008
Call: +1 800 421 7250
Call: +1 760 603 4000

U.S. Laboratories
Carlsbad
Call: +1 760 603 4500
Fax: +1 760 603 1814

New York
Call: +1 212 221 5858
Fax: +1 212 575 3095

U.S. Education
Carlsbad
Call: +1 800 421 7250 ext 4001
Call: +1 760 603 4001
Fax: +1 760 603 4003

New York
Call: +1 800 366 8519
Call: +1 212 944 5900
Fax: +1 212 719 9563