Blue Violet Exceptional Oval Tanzanite Tanzanite 3.44 CaratsOne 3. 44 carats oval tanzanite, blue violet exceptional color (20% 80%), VVS clarity, cut grade very good, measuring 8. 1 mm wide, 10. 2 mm long, 6 mm deep; with very good polish and good symmetry. The proportions of the tanzanite are as follows: total depth 74%. Overall quality and rating 925 out of 1000, (925 color, 1000 clarity and 850 for cut). Tanzanite is color enhanced by heating. Customize a Ring or Pendant with This Gemstone? Did you know