TanzaniteOne is a vertically, integrated group that mines and markets this precious gemstone, holding the mining license for the largest block of the Tanzanite mining area, TanzaniteOnes approach to mining combines science, technology with the practical lessons learnt from hands-on experience. Nestled within Tanzania is TanzaniteOnes cutting and polishing facility and it is here where TanzaniteOne perfected a system to grade the Tanzanite according to size, colour and clarity, still ensuring that the tanzanite remains a precious gemstone. And not forgetting the community surrounding the tanzanite mines. TanzaniteOne is a founding member and primary fund provider of the Tanzanite Foundation and by participating in several projects TanzaniteOne helps provide social, economic and environmental upliftment in the area. The TanzaniteOne Group continues to be committed to operating as a profitable business, a responsible employer and an exemplary corporate citizen.