Here is an approximately .75Ctw Tanzanite & Diamond Ring set in Sterling Silver. Tanzanite is the December Birthstone. The Tanzanite is approximately .70Cts and a beautiful Violet color. Violet is 3 parts Blue and 1 Part Red. The size 7 setting has 10 round Diamonds. This will be auctioned to the highest bidder with an opening bid of $1 with No Reserve.