Blue Violet Round Brilliant Cut Tanzanite Gemstone 1.64 CaratsOne 1. 64 carats round brilliant cut tanzanite, blue violet vivid color , FLAWLESS TO VVS clarity, cut grade good, measuring 7. 3 mm wide, 7. 3 mm long, 4. 9 mm deep; with good polish and good symmetry. The proportions of the tanzanite are as follows: total depth 67. 1%, table width 50. 7%. The overall quality rating of this tanzanite is 896 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with This Gemstone? Did you