One 1.93 carats square cushion tanzanite, blue violet vivid (30%/70%) more violet color, VS clarity, cut grade very good, measuring 7.4 mm wide, 7.4 mm long, 4.8 mm deep; with very good polish and very good symmetry. The overall quality rating of this tanzanite is 915 out of 1000. Tanzanite is color enhanced by heating.