Tanzanite is a rare gemstone that was discovered in Tanzania in 1967. Its luminous violet-blue hue is highly attractive, and some shades are like cornflower blue sapphire. Tanzanite belongs to the Zoisite species, has a hardness rating of 6-7, and is commonly heat-treated to enhance its color and clarity. It is the December birthstone and is often given as a gift for the 8th wedding anniversary. As a certified Gemologist, I highly recommend Tanzanite as an excellent choice for those who seek something unique, rare, and beautiful. Adding a touch of elegance and beauty to any collection, Tanzanite is a perfect choice for those who appreciate exquisite gemstones.