Larimar is one of the newest and rarest gemstones to have been discovered and cataloged. It was formed millions of years ago by volcanic activity and now occurs in just one sqare kilometer of a remote mountain range in the Dominican Republic. Due to its limited locality, this natural and untreated stone is twenty times rarer than Tanzanite, making it one of the rarest gemstones in the world. The extraordinary color of the stone comes from the unique composition of the minerals including copper, vanadium, and magnesium, which is amply found on this island in the Caribbean.