World Gemstone Co., Ltd.

314 Silom Road, Suriyawong, Bangrak, Bangkok 10500, Thailand.
Tel : +66 (0) 2635 8505 Fax : +66 (0) 2635 8512
Email : info@worldgemstone.co.th
Hours of Operation : Monday - Friday 10:00 a.m. to 5:00 p.m.