Blue Violet Round Brilliant Tanzanite Gemstone 1.76 CaratsOne 1. 76 carats round brilliant cut tanzanite, blue violet vivid color, FLAWLESS TO VVS clarity, cut grade very good, measuring 7. 3 mm wide, 7. 3 mm long, 4. 7 mm deep; with good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 64. 4%, table width 53. 4%. The overall quality rating is 917 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with This Gemstone? Did you know that