Blue Violet Emerald Cut Tanzanite Gemstone 2.97 CaratsOne 2. 97 carats emerald cut tanzanite, blue violet vivid color, 10X LOUPE CLEAN clarity, cut grade very good, measuring 7. 1 mm wide, 9 mm long, 5. 1 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 71. 8%, table width 38%. The overall quality rating of this tanzanite is 908 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with This Gemstone? Did you