Ladies' platinum tanzanite ring, with one blue violet exceptional (40%/60%) more violet color, GIA Type I Clarity VS1, square cushion tanzanite. The tanzanite weighs 1.26 carats, measures 5.9 mm wide by 5.9 mm long by 4.8 mm deep, and is 4 prong set. In addition, there are prong set round brilliant cut diamonds, G-H color, S1 clarity, with a total weight of .30 carat. The ring weighs 4.1 grams. Tanzanite is color enhanced by heating.