STS Gems Thai Limited is the Bangkok based operation of the STS Group. Established in the year 1991, this company today employs almost 600 persons directly and indirectly and is one of Thailand’s largest manufacturers and exporters of jewelry and gemstones.

The company specializes in Tanzanite jewelry, Opal Inlay jewelry and other colored gemstone studded jewelry.

The modern, spacious factory houses all jewelry making operations from designing and polishing gemstones to finished jewelry under one roof. Thus ensuring quality and competitive pricing of its goods.

The company has the internationally coveted ISO certification for its jewelry manufacturing and gemstone cutting operations.