Ladies' 14k rose gold tanzanite ring, with one blue violet vivid color, GIA Type I Clarity VS+, antique cushion tanzanite. The tanzanite weighs 1.69 carats, measures 7 mm wide by 7 mm long by 4.7 mm deep, and is 4 prong set. The ring weighs 3.44 grams. Tanzanite is enhanced by heating.