This outstanding gemstone is a Tanzanian tanzanite which has that incredible and very highly desirable royal blue hue. The colour is deep rich and intense and that blue is everything you could want. This is an excellent tanzanite and has been cut in a rectangle cushion design which is very popular and a classic shape for ring settings. Set this beauty with a halo of diamonds and you will have a cocktail evening ring without peer. This is a world class tanzanite gem and I highly recommend this stone.