Round Tanzanite With Extreme Red Flash 53.65 CaratsOne 53. 65 carats round brilliant cut tanzanite, blue violet exceptional (50 50) color, VS1 OR BETTER clarity, cut grade excellent, measuring 22. 2 mm wide, 22. 1 mm long, 15. 8 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 71. 33%, table width 57. 8%. The overall quality rating of this tanzanite is 990 out of 1000. Tanzanite is color enhanced by heating. The finest color,