Violet Blue Oval Tanzanite Gemstone 6.75 CaratsOne 6. 75 carats oval tanzanite, violet blue exceptional (20 80) color, FLAWLESS TO VVS clarity, cut grade very good, measuring 9. 8 mm wide, 12. 5 mm long, 7. 5 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 76. 6%, table width 56. 1%. Tanzanite is color enhanced by heating. Rating 948 out of 1000. Customize a Ring or Pendant with This Gemstone? Did you know that we design custom