Violet Blue Antique Cushion Tanzanite Gemstone 1.80 CaratsOne 1. 80 carats antique cushion tanzanite, violet blue exceptional (20% 80%) color, FLAWLESS TO VVS clarity, cut grade very good, measuring 6. 9 mm wide, 8 mm long, 4. 3 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 62. 3%, table width 43. 5%. The overall quality rating of this tanzanite is 933 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with