Accredited Gem Appraisers
Address : 730 Sansom St., Philadelphia, PA-19106, USA.
Telephone : 215-873
Email : info@gemappraisers.com
Website : http://www.gemappraisers.com

AGT Gem Laboratory
Address : Tokyo:
5-15-14 Ueno, Taito-ku, Tokyo
Building 2F CY Okachimachi
Osaka:
Minamisenba 2-5-8, Chuo-ku, Osaka
Building community Nagahori
Telephone : Tokyo: (+81)03-3834-6586 / Osaka: (+81)06-6266-8601
Email : info@agt.jp
Website : http://www.agt.jp/

AIGS-Asian Institute of Gemological Sciences
Address : AIGS Laboratory, 919/1 Silmon Road, Jewelry Trade Center, 6th Floor, Bangrak, Bangkok 10500, Thailand.
Telephone : 662-267-4325, 662-267-4327
Email : info@aigslaboratory.com
Website : http://www.aigsthailand.com

American Gemological Laboratories
Address: 580 Fifth Avenue #706, New York, NY 10036
Telephone: (212) 704-0727
Email: agl@aglgemlab.com
Website: http://www.aglgemlab.com/

American Gem Society Laboratories (AGSL)
Address : 8917 West Sahara Avenue, Las Vegas, Nevada 89117, US.
Telephone : (702) 233-6120
Email : agslab@lvcm.com
Website : http://www.agslab.com

AnchorCert -
Address : PO Box 151 Newhall Street, Birmingham, B3 1SB
Telephone : 0871 423 7922
Email : gem@theassayoffice.co.uk
Website : http://www.anchorcert.co.uk/

Bharrat Gem Testing Lab
Address : 42/16, Motilal street, T. Nagar, Chennai -17, Tamil Nadu.
Telephone : 24338725
Email : bgtl@scientist.com

Chandigarh Gem. Lab
Address : Booth No.4289, Sector 22-D, Chandigarh 160022, India.
Telephone : 0172-2726333, 9855080808, 9855133391
Email : cglindia@yahoo.com

CISGEM
Address : 30, Viale Achille Papa, Milano (MI), 20149, ITALY
Telephone : +39 02 8515 5250
Telephone (Labs): +39 02 8515 5324
Fax: +39 02 8515 5258
Email : [url]info.cisgem@mi.camcom.it[/url]
Website :http://www.cisgem.it

Diamond and Gem Laboratories of America
Address : 415 Sargon Way, Suite B, Horsham, PA-19044, USA.
Telephone : 215-443-7900
Email : datlas@dglaservices.com
Website : http://www.dglaservices.com

Emil Gem Laboratory
Address : 6th Floor ASIA GEMS TRADE CENTER BUILDING
242-250 MAHESAK ROAD, SURAWONGSE, BANGRAK
BANGKOK 10500, THAILAND
Telephone : 0-2234-8872, 0-2237-1928,
08-4772-5775 (Thai), 08-1912-8208 (English/Japanes)
Email : info@emil.co.th, micky@emil.co.th
Website : http://www.emil.co.th

EGL USA- European Gemological Laboratory-Los Angeles
Address : 550 South Hill, Suite 840, Los Angeles, CA 90013, USA.
Telephone : 877-893-8593, 213-534-2224
Email : egl@eglusa.com
Website : http://www.eglusa.com

EGL USA- European Gemological Laboratory-New York
Address : 6 west 48th Street, New York, NY 10036, USA.
Telephone : 212-730-7380, 212-842-5180
Email : egl@eglusa.com
Website : http://www.eglusa.com

E G Lab Emteem Gem Laboratory,
Address:24/4A, Al Fassy Mawatha Chinafort, Beruwala,Sri Lanka
Phone 0094 342279278
Email: mtmharis@sltnet.lk
Website: emteemgemlab.lk

European Gemological Laboratories-Mumbai
Address : 520, Parekh Market, 39,Kennedy Bridge, Mumbai-400004, Maharashtra, India.
Telephone : 022-65207186
Email : contact@eglindia.biz
Website : http://www.eglindia.biz

European Gemological Laboratory-Toronto
Address : 55 Queen Street E., Suite 500, Toronto, ON M5C 1 R6, Canada.
Telephone : 416-368-1200
Email : egl@eglusa.com
Website : http://www.eglusa.com

European Gemological Laboratory-Vancouver
Address : United Kingdom Building, 409 Granville Street, #456 Vancouver, BC V6C 1T2, Canada.
Telephone : 604-630-0464, 604-630-0465
Email : egl@eglusa.com
Website : http://www.eglusa.com

Gem Scan Laboratories
Address : 6A, Unity House, 2nd floor, Opera House, Opp to Panchratna building, Mumbai - 400004, Maharashtra, India.
Telephone : 022-23673612/84
Email : info@gslabsindia.com
Website : http://www.gslaboratories.com

Gem Scan Laboratories
Address : Prashanth Real Gold Tower, 9th Floor, North Usman Road, Chennai - 600017, Tamil Nadu, India.
Telephone :
Email : info@gslabsindia.com
Website : http://www.gslaboratories.com

Gem Scan Laboratories -Canada
Address : Gem Scan Laboratories Inc., 27 Queen Street E., Suite 406, Toronto, Ontario, Canada M5C 2M6.
Telephone : (416) 868-6656, 1-877-868-6656
Email : info@gemscan.com
Website : http://www.gemscan.com

Gemlab
Address : Laboratory for Gemstone analysis and reports, Mr. Thomas Hainschwang, Gewerbestrasse 3, FL-9496, Balzers, Principality of Liechtenstein.
Telephone : +423 262 2464, +423 373 2243
Email : laboratory@gemlab.net
Website : http://www.gemlab.net

Gemmological Institute of India
Address : 503, Sukh Sagar Building, N.S.Patkar Marg, Opera House, Mumbai-400007,Maharshtra, India.
Telephone : 022-66519030, 022-23612769
Email : gemforum@giionline.com
Website : http://www.giionline.com

Gemological Science International - India
Address : Gem Experience Pvt.Ltd., 4th Floor, Sangrajka House, Beside IndusInd Bank, Lamington Road, Opera House, Mumbai 400004.
Telephone : 022-67470099, 022-66101683
Email : india@gemscience.net
Website : http://www.gsiindia.net

Gems & Gemological Institute of Pakistan (GGIP)-Peshawar.
Address: Suite # 209, 1st Floor, Benevolent Fund Building, Sadder Road, Peshawar - Khyber Pakhtoonkhwa – Pakistan
Phone: (+92-91) 9213303, 9213196, 9213197
Fax: (+92-91) 9213198 , Email: ggipeshawar@yahoo.com
Website: http://www.ggip.com.pk/

German Gemmological Association (DgemG)
Address : Prof.-Schlossmacher-Str.1, D-55743 Idar-Oberstein, Germany.
Telephone : 49(0)6781/50840, 49(0)6781/508419
Email : info@dgemg.com
Website : http://www.dgemg.com

GHI India Pvt. Ltd.
Address : 5C, 5th Floor, Mehta Mahal, 15 Mathew Road, Opera House, Mumbai-400004,Maharashtra, India.
Telephone : 022-23610270, 022-23610271
Email : svabanya@yahoo.com,daryl0801@yahoo.co.uk

GIA- New York
Address : 580 5th Avenue, Suite 200, New York, New York-10036, USA.
Telephone : 800-366-8519, 212-944-5900, 212-575-3095
Email : labservice@gia.edu
Website : http://www.gia.edu

GIA-Carlsbad
Address : 5355 Armada Drive, Carlsbad, California-92008-4699, USA.
Telephone : 760-603-4500, 760-603-1814.
Email : labservice@gia.edu
Website : http://www.gia.edu

GIA-Thailand
Address : 10th Floor, U-Chu-Liang Building, 968 Rama IV Road, Bangkok-10500, Thailand.
Telephone : +66-2-632-4090, +66-2-632-4096
Email : info@giathai.net
Website : http://www.giathailand.com

Gemacyt Laboratorio Gemológico
Address : 15, Siena St. 1º C
28027 - Madrid - Spain
Telephone : 34 917 000 935
Fax : 34 913 194 000
Email : http://gemacyt-lab.com/contacto.php
Website : http://gemacyt-lab.com

Gemological Center “GEMEXIM” Ltd.
Address : Please supply
Telephone : +7 (495) 280 04 37, +7 (495) 280 04 38
Email : gemexim@yandex.ru
Website : http://www.gigia.ru

(GRS)Gemresearch Swiss Lab -Switzerland
Address : GRS Gemresearch Swiss Lab Ltd., P.O. Box 4028, 6002 Lucerne, Switzerland.
Telephone : 41 (41) 210-31-31, 41 (41) 210-31-34
Email : adolf@peretti.ch
Website : http://www.gemresearch.ch

GRS Gemresearch Swisslab -Thailand
Address : Jewelry Trade Center, Room 919/257, 20th Floor, North Tower, Silom Road, Bangrak 10500, Thailand.
Telephone : (66+2)237-5898, 630-0112
Email : adolf@peretti.ch
Website : http://www.gemresearch.ch

GRS Lanka (Pvt.) Ltd.
Address : Galle Road 471 2/1, Colombo -3, Srilanka.
Telephone : 94-11-2583326, 94-11-2582493
Email : adolf@peretti.ch
Website : http://www.gemresearch.ch

GS Gem Scan Laboratories Pvt. Ltd.
Address : 347, Panchratna, Opera House, Mumbai 400 004, Maharashtra, India.
Telephone : 022-23673612/13
Email : info@gslabsindia.com
Website : http://www.gemscan.com

Gübelin Gem Lab Ltd.
Address : Maihofstrasse 102, 6006 Lucerne, Switerland.
Telephone : (+ 41) 41-4291717, 41-4291734
Email : info@gubelingemlab.ch
Website : http://www.gubelinlab.com

Hanmi Gemological Institute Lab (HGI)
Address : 3F, 35-1 , Bongik-dong, Jongrlo-gu, Seoul, 11()-390, korea
Telephone : 02-3672- 2800~2
Email : hanmilab@hanmilab.co.kr
Website : http://hanmilab.co.kr/english/

HKD Diamond Laboratories (Canada)
Address : 21 Dundas Square, Suite 807, Toronto, Ontario Canada M5B 1B7.
Telephone : 416-368-7266, 416-368-8527
Email : info@hkdlab.com
Website : http://www.hkdlab.com

HKD Diamond Laboratories (Canada) Pvt. Ltd.-India
Address : 543, Panchratna Building, Opera House, Mumbai-400004, Maharashtra, India.
Telephone : 022-23683336/7
Email : info@hkdlab.com
Website : http://www.hkdlab.com

IGC Universal Gemological Laboratory (I) Pvt. Ltd.-India
Address : Sunville Bldg, Paper mill lane, Opp- Greens Restaurant, Lamington Road, Mumbai-400064, Mahrashtra, India.
Telephone : 022-23882535/7311
Email : india@igc-labs.com
Website : http://www.igc-gem.com

IGC- Universal Gemological Laboratories-Israel
Address : Diamond Exchange, Maccabi Building Suite 1956, 1 Jabotinsky St., Ramat Gan, Israel-52520.
Telephone : 97237514782, 97236132651
Email : igc@igc-labs.com
Website : http://www.igc-gem.com

IGC- Universal Gemological Laboratories-Rusia
Address : Smolnaya str, 12, office 250, Moscow , Russia-125493
Telephone : +7 495 4523376, +7 495 4522278
Email : igc-gem@mail.ru
Website : http://www.igc-gem.com

IGI- Belgium
Address : IGI Belgium - World Head Office, Schupstraat 1, 2018 Antwerp, Belgium.
Telephone : 32-3-231.68.45
Email : info@igiworldwide.com
Website : http://www.igiworldwide.com

International Diamond Laboratories-Dubai
Address : GOLD&DIAMOND PARK, Building 3, 1st Floor, Sheikh Zayed Road, Dubai, UAE.
Telephone : +971 4 3807999
Email : info@diamondlab.org
Website : http://www.diamondlab.org

IGI- India
Address : International Gemmological Institute (I) Pvt Ltd, 404, Mani Mahal, 11/21, Mathew Road, Opera House, Mumbai-400004, Mahrashtra, India.
Telephone : 022-23672550, 022- 23642861
Email : india@igiworldwide.com
Website : http://www.igiworldwide.com

IGI Istituto Gemmologico Italiano
Address : 1, Piazza San Sepolcro, Milano (MI), 20123 ITALY
Telephone : +39 02 805 049 92
Fax: +39 02 805 057 65
Email : [url]laboratorio@igi.it[/url]
Website : http://www.igi.it

Independent Gemological Laboratories- USA
Address : 21 West 38th Street, New York, NY 10018, USA.
Telephone : 212-382 0008, 212-382 0009
Email : customerservice@dia-lab.com
Website : http://www.dia-lab.com

Independent Gemological Laboratories-Mumbai
Address : 2B Jain Tower, 17 Mathew Road, Opera House, Mumbai-400004, Maharashtra, India.
Telephone : 022-56842533
Email : india@dia-lab.com
Website : http://www.dia-lab.com

Instituto Gemológico Español
Address : C/Alenza 1, 28003-Madrid, Spain.
Telephone : +34 914-414-300
Email : info@ige.org
Website : http://www.ige.org/

International Diamond Laboratories-Belgium
Address : Hoveniersstraat 27, 2018 Antwerp, Belgium.
Telephone : +32 3 232 62 08, +32 3 232 63 28
Email : antwerp@diamondlab.org
Website : http://www.diamondlab.org

International Diamond Laboratories-Dubai
Address : Jewellery & Gemplex, Building 3, 1st Floor, Sheikh Zayed Road, Jebel Ali, Dubai, UAE.
Telephone : +971 4 3688674, +971 4 3688675
Email : info@diamondlab.org
Website : http://www.diamondlab.org

International Gemological laboratories and Institute
Address : C-25, Veer Savarkar Marg, Lajpat Nagar II, New Delhi-110024.
Telephone : 011-29811824 011-46546225
Email : info@igli.in
Website : http://www.igli.in/


Lotus Gemology Co. Ltd.
Address : Silom 19 Building Suite 413, 4th Floor 45/1 Soi 19, Silom Rd
Bangkok, 10500, Thailand
Telephone : +66 (0)2 117 3616
Email : info@lotusgemology.com
Website : http://www.lotusgemology.com

MSU Gemological Center
Address : Gemological Center, Department of Geology, Moscow University Main Building, leninskie Gory, GSP-2, Moscow, Russia-119992.
Telephone : +7 095 939 4973, +7 095 932 8894
Email : gemology@geol.msu.ru
Website : http://www.gemology.ru

SSEF Swiss Gemmological Institute
Address : Falknerstrasse 9, CH-4001 Basel, Switzerland.
Telephone : +41 61 262 0640, +41 61 262 0641
Email : gemlab@ssef.ch
Website : http://www.ssef.ch

Stone Group Labs
Email : bear@stonegrouplabs.com
Website : http://www.stonegrouplabs.com/Welcome.html

Swedish Gem Lab
Email: info@gemlab.se
Website: https://gemlab.se/

The Gem and Jewelry Institute of Thailand
Address : Gemmological Research and Testing Building, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand.
Telephone : (622)218-5470-4, 652-5252
Email : jewelry@git.or.th
Website : http://www.git.ot.th/eng/eng_index.htm

Zitco Gem Testing Lab
Address : Kolcutta, West Bengal.
Telephone : 09373314622
Email : zitco@gemtestlab.com
Website : http://www.zitco.com

Wow Barbra,

pretty comprehensive looking list...thanks. Nice to have em all in one place

Wow, what an AWESOME resource! Thanks for all the hard work, Barbra!!!

Okay, I now see that there is a new forum heading for Contact Information .

I also think there are several rather new French Gem Labs which are not on my list.
Please supply information if you have it.
Thanks

Indeed great work.

HUK

I have added some labs and removed others.
I am not interested in labs which are owned by individual appraisers.

This is great, Barbra - very useful!

What about Thai SLP lab (SLP Gem Laboratory)? A number of popular eBay sellers, e.g. gem-earth, use them frequently - any issues others here may have had with SLP's work?

dy

Do you have contact information?
I, frankly, have never heard of them.

Thanks for additions.
Please PM them in the future.

Sent you a PM with info.

We just tested six stones with SLP Gem Lab reports.
Every report was incorrect.

What was reported as a Tsavorite, was green glass, a "Natural Emerald" turned out to be quench crackled synthetic white corundum. Aqua was actually synthetic quartz... on and on.

While the pictures matched up just fine, the weights and measures were slightly off. A loophole I guess?

Perhaps our friends who haunt Mahaesak often can see whats up there with this lab.

Yikes.
Thanks Bear, I guess there was a premonition which is why I never added them to my list.

No wonder e-bay sellers liked them!

hi, i would like to know is there a separate link for labs in london.... as in the list i was not able to find names of the labs in london