This blue/purple gemstone was first discovered in 1967 in northern Tanzania at the base of Mt. Kilimanjaro. Officially called blue zoisite it was marketed as tanzanite by Tiffany & Co. who wanted to capitalize on the rarity of this gem that is only found in Tanzania. Tanzanite is the only gem discovered in the last 100 years that has been added to the birthstone list, as a December birthstone.
Learn more at GemU