Tanzanite is one of the birthstones for December and the 24th wedding anniversary gemstone.

Tanzanites are very rare. They are only found in a 20-square-mile area known as the Merelani Hills in Northern Tanzania, near the city of Arusha and Mount Kilimanjaro.  Masai tribesman Ali Juuyawatu is said to have discovered the first tanzanite crystal in 1967.