Ladies' 14k white gold tanzanite ring designed by Christopher Michael, with one blue violet vivid color, GIA Type I Clarity VS , square cushion tanzanite. The tanzanite weighs 1.93 carats, measures 7.1 mm wide by 7.2 mm long by 5 mm deep, and is 8 prong. In addition, there are thirty prong set ideal round brilliant cut diamonds, F-G color, SI1 clarity, with a total weight of .21 carat. The ring weighs 4.5 grams. Tanzanites are color enhanced by heating. Popular shape gem with beautiful color and brilliance.