Blue Violet Oval Tanzanite Gemstone 5.73 CaratsOne 5. 73 carats oval tanzanite, blue violet exceptional color, FLAWLESS TO VVS clarity, cut grade very good, measuring 9. 8 mm wide, 11. 8 mm long, 7 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 71. 4%, table width 57. 1%. The overall quality rating of this tanzanite is 915 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with This Gemstone? Did you