Platinum Tanzanite and Diamond Halo Ring 1.16 CaratsLadies' platinum tanzanite ring, with one blue violet exceptional (40% 60%) color, GIA Type I Clarity FLAWLESS TO VVS, round brilliant cut tanzanite. The tanzanite weighs 1. 16 carats, measures 6. 5 mm wide by 6. 5 mm long by 4. 1 mm deep, has very good cut, very good polish and very good symmetry, and is 4 prong set. In addition, there are thirty eight prong set round brilliant cut diamonds, G H color, SI2 clarity, with a total weight of . 33 carat.