Blue Violet Oval Tanzanite Gemstone 8.22 CaratsWas $5980 on Sale through 1 31 2020 One 8. 22 carats oval tanzanite, blue violet exceptional color, FLAWLESS TO VVS clarity, cut grade excellent, measuring 11. 2 mm wide, 13. 7 mm long, 7. 8 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 69. 6%, table width 54. 5%. The overall quality rating of this tanzanite is 960 out of 1000. Tanzanite is color enhanced by heating.