Blue Violet Square Cushion Tanzanite Gemstone 4.75 CaratsOne 4. 75 carats square cushion tanzanite, blue violet exceptional (45% 55%) more violet color, VS1 clarity, cut grade very good, measuring 9. 7 mm wide, 9. 7 mm long, 6. 6 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 68%, table width 57. 7%. Tanzanite is color enhanced by heating. The overall quality rating of this tanzanite is 970 out of 1000. Customize a Ring or Pendant with