Violet Blue Emerald Cut Tanzanite Gemstone 1.43 CaratsOne 1. 43 carats emerald cut tanzanite, violet blue exceptional (10% 90%) color, FLAWLESS TO VVS clarity, cut grade very good, measuring 5 mm wide, 7. 1 mm long, 4. 2 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 84%. The overall quality rating of this tanzanite is 950 out of 1000. Tanzanite is color enhanced by heating.. Customize a Ring or Pendant with This Gemstone? Did you know