Specializing in rare natural gemstones from Madagascar, East Africa and Asia. Offering over 130 gemstone varieties, including alexandrite, sapphire, ruby, tanzanite, tsavorite, spinel and tourmaline. Features a comprehensive gemstone library/buying guide. Registered in Thailand, Multicolour Gems is a joint venture between Swiss, American, Thai, Dutch, and Australian shareholders. We stock a large selection of gems from a variety of sources in a broad range of sizes, shapes, and qualities Multicolour Gems - www.multicolour.com is a major importer of rough stones from East Africa and Madagascar. We have our own cutting facilities and can process our material as soon as it arrives. Multicolour purchase direct ââ¬â either in the bush, from the mines, or from other dealers in Africa and Thailand.