Buy it here → Ladies’ 14k white gold tanzanite pendant, with one blue violer vivid (30%/70%)more violet color, GIA Type I Clarity VS1, round brilliant cut tanzanite. The tanzanite weighs 1.76 carats, measures 7.4 mm wide by 7.4 mm long by 4.7 mm deep, and is 4 prong set. The pendant weighs 2.85 grams. The overall quality rating of this tanzanite is 913 out of 1000. Tanzanite is color enhanced by heating.