Violet Blue Antique Cushion Tanzanite Gemstone 3.71 CaratsOne 3. 71 carats antique cushion tanzanite, violet blue exceptional (15% 85%) color, FLAWLESS TO VVS clarity, cut grade excellent, measuring 7. 8 mm wide, 9. 2 mm long, 6. 5 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 83. 3%, table width 51. 3%. The overall quality rating of this tanzanite is 960 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with