Simon G. Jewelry has created this beautiful Tanzanite ring for you. This is a December birthstone ring, as Tanzanite is a substitute for Blue Topaz and Turquoise. This tanzanite ring is made with 18k white gold and diamonds that are .44 carats in total weight. The tanzanite is 1.71 carats and shaped in an elegant oval. Tanzanite birthstone rings are a great option for December birthdays.