Gemological Laboratories in Thailand
Apart from the 4C of diamonds gemstones (cut, clarity, color, carat) that you’ll need to know before buying the right diamonds/gemstones for yourself, there is also the “Fifth C” - Certificate to be adhered to.
You can get a diamond / gemstone certificate from the reputable gemological laboratory below:
The Gem and Jewelry Institute of Thailand (Public Organization) (GIT)
ITF-Tower Building, 4th Floor, Silom Road, Bangrak, Bangkok 10500 Thailand
Tel: +66 2 634 4999 ext. 409 Fax: +66 2 634 4970
E-mail: jewelry@git.or.th
Gemological Institute of America (Thailand) (GIA)
10th Floor U-Chu-Liang Building,968 Rama IV Road, Bangkok 10500 Thailand
Tel: +66 2 632 4090 Fax: +66 2 632 4096
E-mail: giabkklab@gia.edu
Asian Institute of Gemological Sciences (AIGS)
919/539 Jewelry Trade Center Bld., 48th fl., Silom rd., Bangrak, Bangkok 10500 Thailand
Tel: +66 2 267 4315 Fax: +66 2 267 4320
E-mail: registrar@aigsthailand.com
GRS Thailand (Dr. Peretti Co., Ltd.)
501-506, Silom 19 Building, Soi 19, Silom Road, Bangrak, Bangkok 10500 Thailand
Tel: +66 2 237 5898 Fax: +66 2 237 5899
International Gemological Institute (I.G.I)
BGI Building, 9 Soi Charoen Krung 36, New Road, Bangkok 10500 Thailand
Tel: +66 2 630 6726, +66 2 630 6727 Fax: +66 2 630 6728
E-mail: thailand@igiworldwide.com
HKD Diamond Laboratories
C.N.D. Thailand Co., Ltd.
919/253 Jewelry Trade Center, 20/F Silom Road, Bangrak, Bangkok 10500 Thailand
Tel: +66 2 630 3143-4 Fax: +66 2 630 3145
E-mail: contactus@hkdlab.ca
Tokyo Gem Laboratory (Thailand) Co., Ltd.
987 Rama Jewelry Building, 3rd Floor, Silom Road, Bangrak, Bangkok 10500 Thailand
Tel: +66 2 235 7324 Fax: +66 2 235 2033
E-mail: tglbkk@hotmail.com
The School of Gemological Sciences (SGS)
99 Piyamitr Building, 5th Floor Room 511, Mahaesak Road, Bangrak, Bangkok 10500 Thailand
Tel: +66 2 233 7262 Fax: +66 2 237 6504
E-mail: info@sgs.ac.th
