Tanzanite Square Cushion 3 CaratsOne 3. 00 carats square cushion tanzanite, blue violet exceptional color, 10X LOUPE CLEAN clarity, cut grade very good, measuring 9 mm wide, 9. 1 mm long, 5. 4 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 59%. This is a partial recut of the pavillion. Overall quality rating 919 out of 1000. Customize a Ring or Pendant with This Gemstone? Did you know that we design custom Tanzanite