Violet Blue Square Cushion Tanzanite Gemstone 3.30 CaratsOne 3. 30 carats square cushion tanzanite, violet blue exceptional (30% 70%) color, FLAWLESS TO VVS clarity, cut grade very good, measuring 8. 5 mm wide, 8. 4 mm long, 6 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 70. 6%, table width 55. 3%. The overall quality rating of this tanzanite is 934 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with