One 4.72 carats round brilliant cut tanzanite, blue violet exceptional color (50/50), FLAWLESS TO VVS clarity, cut grade excellent, measuring 9.4 mm wide, 9.5 mm long, 7.3 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 77.2%, table width 52.9%. The overall quality rating of this tanzanite is 969 out of 1000. A re-cut by Steve Moriarty. This gem has an excellent color change from violet in incandescent light to blue in daylight with some red flash. The overall quality rating of this tanzanite is 969 out of 1000. Tanzanite is color enhanced by heating. Color Changing 4.72 Ct. Round Tanzanite with Extreme Brilliance