- Country of Origin
Through perhaps the most successful marketing of any stone other than the Diamond, Tanzanite has gained worldwide recognition through the efforts of Tiffany and Company. While the main Zoisite deposit in Tanzania produces quite an array of colors, it is the royal blue that is most sought after. Most Tanzanite is heated to bring out this shade from the more dull & boring color when it comes out of the ground. Natural blue Tanzanite does in fact exist, and will continue to be sought after by collectors and investors for many years to come.