One 3.53 carats square cushion tanzanite, blue violet exceptional (40/60) color, VS1 clarity, cut grade very good, measuring 8.7 mm wide, 8.7 mm long, 6 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 68.9%, table width 59.7%. The overall quality rating of this tanzanite is 933 out of 1000. Tanzanite is color enhanced by heating. Tanzanite Square Cushion Mixed Deep Blue and Violet 3.53 Carats.