The Treasury Stone Museum houses a remarkable collection of precious and semi-precious stones, including sapphires, rubies, and moonstones. Visitors can learn about the geological formation of these gems, their historical significance, and the traditional methods used in mining and processing.

The museum provides an educational experience with guided tours explaining the local gemstone industry. Guests can admire rare and valuable stones, explore interactive exhibits, and purchase authentic Sri Lankan gemstones, making it a must-visit for geology enthusiasts and collectors.