Blue Violet Antique Cushoin Tanzanite Gemstone 5.51 CaratsOne 5. 51 carats antique cushion tanzanite, blue violet exceptional (40% 60%) color, FLAWLESS TO VVS clarity, cut grade very good, measuring 8. 9 mm wide, 10. 9 mm long, 6. 9 mm deep; with very good polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 77. 5%, table width 56. 2%. The overall quality rating of this tanzanite is 948 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant