About Us


Based in Bangkok, Thailand since 1986, Thai Lanka Trading is a family owned and operated gemstone trading business, specializing in rare stones sourced from across Asia and Africa. We deal in fine, well-cut Sapphires and other stones such as Spinel, Zircon, Tourmaline and Sphene. We also specialize in rare gemstones such as:

  • Bastnasite
  • Johachidolite
  • Poudretteite
  • Hibonite
  • Burmite
  • Hambergite

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  • Vayrynenite
  • Triplite
  • Taaffeite
  • Musgravite
  • White Enstatite
  • Dumortierite

Founders Mark and Nitayagorn ‘Tim’ Smith both studied at Bangkok’s well known AIGS (Asian Institute of Gemological Sciences), where they received their Accredited Gemologist diplomas- Mark in 1984 and ‘Tim’ in 1987. Having spent over two decades honing expertise and cultivating relationships with sources and customers alike, Thai Lanka has become a strong and respectable presence in the South East Asian colored gem market. As a small company, our core values include integrity and quality.

We are truly passionate about the origins of our stones, supporting the remote villages and growing businesses that these mines allow. Mark personally loves traveling directly to the source, frequently visiting mining sites and local gem markets around Southeast Asia, and on occasion, Africa. We appreciate the long journey of a stone, from a rough deep within the earth to a shining jewel of adornment. This rare combination of raw passion and refined knowledge make Thai Lanka Trading a company to be trusted.

Though Thai Lanka Trading is based in Bangkok, we do exhibit internationally throughout the year. Every year we have booths at shows including the Hong Kong Gem & Jewelry Fair and the Tucson Gem & Mineral Show. For more details on our presence at specific shows, please do not hesitate to send us an enquiry.

Below are selected photos from our travels throughout the years, visiting mines in countries such as Mozambique, Vietnam, Cambodia, and Burma. Please click on the images for details.