Company name :  Gemological Research (Thailand) Co Ltd
6th and 10th Floor, U Chu Liang Bldg., 968 Rama IV Road, Silom, Bangrak, Bangkok 10500

Contact person :  1. Ms. Claudia Stephanie D’Andrea

Tel :  (02) 779-6100
Fax :  (02) 632-4288
Email :  edandrea@gia.edu
www.gia.edu