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The List of Top & Respected Gem Testing Labs in the World - 2023

The list of gem labs is ranked by country. They are approved and choice because of their certificate quality and authority, an identification report tell buyers important info: exact weight, treatment, heating test, enhancement, clarity, cutting quality, origin, color grading, treatment. It is absolutely helpful for precious gemstone(Burma Pigeon Blood Ruby, Kashmir Blue Sapphire, Muzo Emerald, Jedi Spinel, Diamond) and jewelry buyers to make a right consumption/investment. Also, to check prices for certificate of gemstones(total 28 gem labs).
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Also, I need your help to improve and perfect this list. The info I need: Gem Labs in London, Dubai, Paris, Los Angeles, New York, Singapore, Sydney.
Thank You in Advance, Please Send Gem Labs Names in Your City/Country to kimwoochina@qq.com

1. Gübelin Gem Lab(GUBELIN) - Switzerland
in Lucerne, Hong Kong, New York. - - Price List - - Report Verification
A Lot of High Value Gemstones are Certified with Gubelin, Especially on Auction House
https://www.gubelingemlab.com/

2. Swiss Gemmological Institute(SSEF) - Switzerland
in Basel. - - Price List - - Report Verification
A Lot of High Value Gemstones are Certified with SSEF, Especially on Auction House
https://www.ssef.ch/

3. GemResearch Swisslab(GRS) - Switzerland
in Meggen, Paris, Hong Kong, Colombo, Bangkok, New York. - - No Price List to Public - - Report Verification
a very well-known lab, but very very bad record on gem color grading. The biggest joking is that their pigeon blood color is black.
http://gemresearch.ch/

4. Gemological Institute of America(GIA) - USA
in New York, Carlsbad, Antwerp, Bangkok, Hong Kong, Mumbai, Surat, Tokyo, Gaborone, Johannesburg, Ramat Gan. - - Price List - - Report Verification
the most famous institute for diamond report in the world. very good at colored gem report, too.
https://www.gia.edu/

5. American Gemological Laboratories(AGL) - USA
in New York. - - Price List - - No Report Verification Online
http://aglgemlab.com/

6. American Gem Society(AGS) - USA
in Las Vegas. - - No Price List to the Public - - No Report Verification Online
https://www.americangemsociety.org/

7. Emteem Gem Laboratory(E.G.Lab/EGL) - Sri Lanka
in Beruwala. - - No Price List to the Public - - Report Verification
very professional in Sapphire & Ruby, a very respected lab, the no.1 lab in Sri Lanka.
http://emteemgemlab.lk/

8. Gemmological Institute of Colombo(GIC) - Sri Lanka
in Colombo. - - No Price List to the Public - - Report Verification
https://www.gicolombo.com/

9. Global Gem Testing Laboratory(GGTL) - Sri Lanka
in Colombo, Beruwala. - - No Price List to the Public - - Report Verification
http://www.ggtlsl.com/

10. Asian Institute of Gemological Sciences(AIGS) - Thailand
in Bangkok. - - Price List - - Report Verification
The Top Gem Lab in Thailand.
https://www.aigsthailand.com/

11. Lotus Gemology - Thailand
in Bangkok. - - Price List - - Report Verification
The Top Gem Lab in Thailand.
http://www.lotusgemology.com/

12. The Gem and Jewelry Institute of Thailand(GIT)
in Bangkok. - - Price List - - Report Verification
The Governmental Lab for Gem.
https://www.git.or.th/

13. Nan Yang Gemological Institute(NGI) - Singapore
in Far East Plaza, Singapore. - - No Price List to the Public.
http://www.ngi.com.sg/

14. Central Gem Laboratory(CGL) - Japan
in Tokyo. - - Price List - - Report Verification
http://www.cgl.co.jp/

15. National Gemstone Testing Center(NGTC) - China
in Beijing, Shanghai, Guangzhou, Shenzhen, Foshan, Hong Kong. - - No Price List to the Public.
The Most Famous Gem Lab in China, It is Operated by The Gov.
http://www.ngtc.com.cn/

16. Gemmological Institute of China University of Geosciences(GIC) - China
in Wuhan, Guangzhou, Shenzhen. - - No Price List to the Public.
Very Famous Lab by A Respected University.
http://www.gic.cug.edu.cn/

17. IBGM Lab - Brazil
in Brasilia, Sao Paulo. - - No Price List to the Public.
http://ibgm.com.br/

18. CDTEC Lab - Colombia
in Bogota. - - Price List
Professional for Colombian Emerald Oil Treatment and Enhancement.
http://www.gemlabcdtec.com/

19. Jaipur Gem Testing Lab India(JGTLI) - India
in Jaipur. - - No Price List to the Public
http://www.jgtli.com/

20. JBN Gem Testing Lab - India
in Jaipur. - - No Price List to the Public
http://www.jbngemtestinglab.com/

21. Gemmological Certification Services(GCS) - UK
in London. - - Price List
http://gcslab.co.uk/

22. AnchorCert Gem Lab - UK
in Birmingham. - - No Price List to the Pulbic
https://anchorcertgemlab.com/

23. Moscow Gemological Center(MGC) - Russia
in Moscow. - - Price List
https://mgc-labs.ru/

24. MSU Gemmological Center - Russia
in Moscow. - - Price List
https://www.gem-center.ru/en/

25. Instituto Gemológico Espa~nol - Spain
in Madrid. - - Price List - - Report Verification
https://ige.org/

26. ICA GemLab - Worldwide
in Hong Kong, Bangkok. - - Price List - - Report Verification
https://www.icagemlab.com/

27. International Gemological Institute(IGI) - Worldwide
in Antwerp, Ramat Gan, Dubai, New York, Los Angeles, Hong Kong, Shanghai, Bangkok, Tokyo, INIDA(Mumbai, New Delhi, Hyderabad, Kolkata, Surat, Ahmedabad, Thrissur, Chennai, Jaipur, Bangalore), ITALY(Borca di Cadore, Ascoli Piceno, Cavalese, Marcianise, Roma, Trecastagni.) - - No Price List to the Public.
https://www.igi.org/

28. American International GemLab(AIG) - Worldwide
in Bangkok, USA. - - No Price List to the Public.
http://www.aigllabs.com/

99. The Gemmological Association of Great Britain(FGA) - UK
https://gem-a.com/

2023-02-17, Keeping on Update...

Reference:
The List of Gem Labs in China.
The List of Gem Labs in Hong Kong.

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