GIA Laboratory

GIA is considered the world's most trusted name in diamond grading and gemstone identification. Since 1931, GIA has been dedicated to ensuring the public trust in gems and jewelry by up holding the highest standards of integrity, academics, science, and professionalism. It is the corporate birthplace of the International Diamond Grading System™ and the creator of the famous 4Cs of diamond value — color, clarity, cut and carat weight.

GIA's D-to-Z color-grading scale and Flawless-to-I3 clarity-grading scale are recognized by gem and jewelry professionals everywhere. And, by extension, the GIA Diamond Grading Report, Diamond Dossier®, and Gemological Identification Report are considered the world's premier gemological credentials.

With laboratories in New York and California, additional research facilities in Geneva, Antwerp, and Bangkok, 14 campuses, and more than 1,100 employees worldwide, the Institute's diamond graders, researchers, and educators are regarded, collectively, as the world's foremost authority in gemology. And together, they carry on GIA's proud tradition of research, discovery, and education.

GIA Laboratory Headquarters and East Coast Laboratory

580 Fifth Avenue, Suite 200
New York , New York 10036-4794
Tel: 212-221-5858
Fax: 212-575-3095

West Coast Laboratory

5355 Armada Drive, Suite 200
Carlsbad, California 92008-4699
Tel: 760-603-4500
Fax: 760-603-1814

For information about GIA Laboratory Services, visit our Web site at http://www.gia.edu/.

GIA Laboratory Service Center

Easy, convenient access to GIA's world renowned laboratory services right here in Hong Kong

• Submit and pick up your items locally
• Enjoy the same fees as all lab clients
• Know that your items will be returned to you safely and securely
• Work with friendly, courteous, and tri-lingual GIA staff

Room 1203, 12/F, Aon China Building
29 Queen's Road, Central
Hong Kong
Tel: (852) 3114-7102
Fax: (852) 3114-7133
Email: HKlabinfo@gia.edu
Web: www.gia.edu
Hours: Monday - Friday, 9:00 am - 6:00 pm