List of Reputable Labs for Gemstones- Saph., Emerald, Rub, etc

[DBM]

tried to do run some searches but couldn''t find a thread that gave a complete list of the major grading labs for gemstones. So far all I have is AGTA, AIGS, GIT (which i assume are well accepted). Can anyone give a more thorough list of the reputable grading labs for gemstones.

To put it from a diamond perspective: a breakdown of the GIAs, EGLUSAs, EGL-Europes, and lastly the mom-and-pop labs --- just in the gemstone world. thx

 

[DiamondExpert]

Here''s some more...Colored Gem Testing Laboratories
Gemological Institute of America (GIA)
5345 Armada Drive
Carlsbad, California 92008
Tel: (800) 421 7250
www.gia.edu
American Gem Trade Association (AGTA)
18 East 48th Street, Suite 502
New York, New York 10017 USA
Tel: (212) 752 1717
www.agta.org
American Gem Society Laboratories (AGSL)
8917 West Sahara Avenue
Las Vegas, Nevada 89117
Tel: (702) 233 6120
www.agslab.com
American Gemological Laboratories (AGL)
580 Fifth Avenue
Suite 706
New York, New York 10038
Tel: (212) 704 0727

European Gemological Laboratory USA (EGL)
6 West 48th Street
New York, New York 10036
Tel: (212) 730 7380
www.eglusa.com
Gübelin Gem Laboratory Ltd. (GGL)
Maihofstrasse 102
6006 Lucerne Switzerland
Tel: (+ 41) 41 / 429 17 17
www.gubelinlab.com
Swiss Gemmological Institute (SSEF)
Falknerstrasse 9
CH-4001 Basel, Switzerland
Tel: (+ 41) 61 262 06 40
www.ssef.ch
Österreichische Gemmologische Gesellschaft (SSEF)
Goldschlagstrasse 10
1150 Wien (Vienna), Austria
Tel: (+ 43) 01 231 22 38 od. 0676/310 40 66
www.oegemg.at
Laboratoire Français de Gemmologie (LFG)
2, place de la Bourse
75002 Paris, France
Tel: (+ 33) 1 40 26 25 45
www.diamants.ccip.fr
Gemmological Institute of India (GII)
29 Gurukul Chambers
187-189 Mumbadevi Road
Bombay 400 002, India
Tel: (+ 91) 22 2342 00 39
www.giionline.com
Gem Institute of Thailand (GIT)
Gem Research and Testing Building
Phayathai Road
Bangkok 10330, Thailand
Tel: (+ 66) 2 218 54 70-3
www.git.or.th

 

[elmo]

Don''t forget GRS - http://www.gemresearch.ch/

.

 

[DBM]

That''s great. Thx. Was also interested though in the sort of "hierarchy" of the certs. which would be the top most respected so to speak..

also, specifically the two different SSEF labs.. are they both well respected and accurate? is one better than the other? is their any common trade jargon that is used to distinguish between the two (like SSEF Switzerland vs. SSEF Austria or something)?

 

[DBM]

on second look though.. i''m guessing the Austria one is a typo and is something else.. i looked at their website.. they abbreviate for themselves Austrian Gemological Laboratories (AGL) !! how confusing!

 

[Pandora II]

The Gemmological Association & Gem Testing Laboratory of Great Britain
27 Greville Street,
London,
EC1N 8TN,
UK
Telephone: +44 (0)20 7404 3334
Fax: +44 (0)20 7404 8843
Email: [email protected]

 

[CaptAubrey]

No need to go to the trouble of compiling a list--the ICA has already done it for you.

World Gemological Laboratory Directory

 

[jszweda]

Date: 2/27/2008 1:20:19 PM
Author: CaptAubrey
No need to go to the trouble of compiling a list--the ICA has already done it for you.

World Gemological Laboratory Directory

God bless you my friend as this might help me out in the dilemma from my other post!

I was trying to find other labs besides the ones mentioned here. I thank you for sharing this tid bit.