Blue Violet Antique CushionTanzanite Gemstone 4.77 CaratsOne 4. 77 carats antique cushion tanzanite, blue violet exceptional (937) (25 75) color, FLAWLESS TO VVS clarity, cut grade excellent, measuring 8. 6 mm wide, 9. 5 mm long, 7. 7 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 89. 5%, table width 47. 7%. The overall quality rating of this tanzanite is 962 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant