An article from Bangkok Gems & Jewellery magazine (issue February 2006, vol.19 no.7, page 220, 221)

CORPORATE PROFILE

Expert Gems - The Sapphire Specialist

wants to go right to the source for rubies and sapphires, then the place to visit is undoubtedly Chanthaburi, a mere 280 kms east of Bangkok and Expert Gems Manufacturing Co., Ltd., is one of the landmark firms there. Although the company itself was incorporated in 2003, Managing Director Thongsak Chintakanroek has more than twenty years of experience in the gemstone business, especially with corundum, which is Thailand's speciality.

specialist with huge variety of blue and yellow sapphire being manufactured at its own ISO