Worldwide Locations


Europe

London,
United Kingdom
GIA England
104 Great Russell Street
London, WC1B 3LA
Phone:+ 44 (0) 20 7813 4321
Fax: + 44 (0) 20 7813 4331

Asia

Bangkok,
Thailand
GIA (International) Co., Ltd.
Mitrtown Office Tower, 19th Floor, Unit 1901-1902
944 Rama IV Road, Wangmai, Pathumwan
Bangkok, 10330
Phone:+66 2779 6100

Bangkok,
Thailand
Gemological Research (Thailand) Co., Ltd.
Mitrtown Office Tower, 19th Floor, Unit 1903-1910
944 Rama IV Road, Wangmai, Pathumwan
Bangkok, 10330
Hours: Monday - Friday, 10 a.m. - 5 p.m.
View available services and shipping information
Phone:+66 2779 6100

Bangkok,
Thailand
Gemological Research (Thailand) Co., Ltd.
Mitrtown Office Tower, 19th Floor, Unit 1903-1910
944 Rama IV Road, Wangmai, Pathumwan
Bangkok, 10330
Hours: Monday - Friday, 10 a.m. - 5 p.m.
Phone:+66 2779 6100

Hong Kong,
China
GIA Hong Kong Laboratory Ltd.
GIA Laboratory Services
Room 1108, 11th Floor
New World Tower 1
18 Queen’s Road Central
Hong Kong
Hours: Monday - Friday: 9 a.m. - 4 p.m.
Rush service currently not available for Colored Stone submissions.
For submission by shipment, please send to Kowloon Bay (GIA Hong Kong Laboratory)
Phone:+852 3166 7002

Hong Kong,
China
GIA Hong Kong Limited
3rd Floor, New World Tower II
18 Queen’s Road Central
Hong Kong
Phone:+852 3166 7001
Fax: +852 2334 0567

Mumbai,
India
GIA India Laboratory Private Limited
10th Floor, Trade Centre
Bandra Kurla Complex, Bandra (East)
Mumbai, 400 098
Phone:+91 22 4085 1595
Fax: +91 22 4085 1554

Hong Kong,
China
GIA Hong Kong Laboratory Ltd.
20th Floor, The Bay Hub
17 Kai Cheung Road, Kowloon Bay
Hong Kong
Hours: Monday - Friday, 9 a.m. - 5 p.m.
Rush Service currently not available for Colored Stone submissions.
For submission by shipment, please send to Kowloon Bay (GIA Hong Kong Laboratory)
View available services and shipping information
Phone:+852 3166 7000
Fax: +852 3521 1698

Mumbai,
India
GIA India Laboratory Private Limited
10th Floor, Trade Centre
Bandra Kurla Complex, Bandra (East)
Mumbai, 400 098
Hours: Open with modified hours. Clients must make an appointment in advance. Please email mumbailab@gia.edu with any questions.
View available services and shipping information
Phone:+91 22 40851500

Surat,
India
GIA India Laboratory Private Limited
2nd, 3rd Floor Swastik Universal
Dumas Road, Piplod
Surat, 395 007
Hours: Open with limited staff and modified services, Monday - Friday, 9 a.m. - 4:30 p.m. View details.
Phone:+91 261 6130600
Fax: +91 261 6130651

Surat,
India
GIA India Laboratory Private Limited
2nd, 3rd Floor Swastik Universal
Dumas Road, Piplod
Surat, 395 007
Phone:+91 261 6130600
Fax: +91 261 6130651

Taipei,
Taiwan
GIA Instrument (Taiwan) Company
3rd Floor, 270 Nanjing East Road, Sec. 3
Taipei, 10551
Phone:+886 2 2771 9391
Fax: +886 2 2771 9921

Tokyo,
Japan
GIA Tokyo Godo Kaisha
Yamaguchi Building 7, 11th Floor
4-19-9 Taito
Taito-ku
Tokyo, 110-0016
Hours: Open Monday - Friday from 10 a.m. - 5 p.m. with a break from 12 - 1 p.m.
View available services and shipping information
Phone:+81 3 5812 3215
Fax: +81 3 3836 3280

North America

Carlsbad,
United States of America
Gemological Institute of America, Inc.
5355 Armada Drive
Carlsbad, California,
92008
Hours: Monday - Friday, 8:30 a.m. - 3 p.m. by appointment only.
View available services and shipping information
Phone:+1 800 421 7250, ext. 7590
Phone:+1 760 603 4500
Fax: +1 760 603 1814

Carlsbad,
United States of America
World Headquarters
Gemological Institute of America, Inc.
The Robert Mouawad Campus
5345 Armada Drive
Carlsbad, California, CA 92008
Phone:+1 800 421 7250
Phone:+1 760 603 4000
Fax: +1 760 603 4003

Carlsbad,
United States of America
Gemological Institute of America, Inc.
5355 Armada Drive
Carlsbad, California, 92008
Phone:+1 800 421 7250
Phone:+1 760 603 4000
Fax: +1 760 603 4003

New York,
United States of America
Gemological Institute of America, Inc.
50 W 47th Street, Unit 400
New York, New York,
10036
View Shipping Address
Hours: Open with limited capacity Monday - Thursday, 9 a.m. - 5:15 p.m. and Friday, 8:30 a.m. - 5 p.m.
View details
View available services and shipping information
Phone:+1 212 221 5858
Fax: +1 212 575 3095

New York,
United States of America
Gemological Institute of America, Inc.
50 W 47th Street
Unit 400
New York, New York, 10036
Phone:+1 212 221 5858
Fax: +1 212 575 3095

New York,
United States of America
Gemological Institute of America, Inc.
50 W 47th Street
New York, NY 10036
Phone:+1 800 366 8519
Phone:+1 212 944 5900

Middle East & Africa

Dubai,
United Arab Emirates
GIA Laboratory DMCC
Uptown Tower, 13th and 14th Floors
First AI Khail Street
Dubai
Hours: The laboratory is open Monday - Friday 9 a.m. - 6 p.m. Appointment required for all pick-up and/or drop-off of loose, polished stones. For all other inquiries, please email DubaiLab@gia.edu.
View available services and shipping information
Phone:+971 4 875 0700

Gaborone,
Botswana
GIA Education and Laboratory Ltd.
Suites 301 and 201, GIA Centre
Diamond Technology Park
Plot 67782, Block 8
Gaborone
Hours: Open with limited capacity. Please email gaboronelab@gia.edu with any questions.
View available services and shipping information
Phone:+267 318 0361
Fax: +267 318 0398

Johannesburg,
South Africa
GIA Education and Laboratory (Pty) Ltd
The Paragon, 2nd Floor East Wing
1 Kramer Road, Bedfordview
Johannesburg, 2007
Hours: Open with limited capacity. Visitors must make an appointment in advance. View details.
View available services and shipping information
Phone:+27 11 334 2744
Fax: +27 11 334 0932

Ramat Gan,
Israel
Gemological Institute of America Inc. (CC)
21 Tuval Street
Hayahalom Building, 22nd Floor
Ramat Gan, 52522
Hours: Sunday - Thursday, 9 a.m. - 4:45 p.m.
In person drop off and pick up only.
View available services and shipping information
Phone:+972 35226749
Fax: +972 35227452