Blue Violet Square Step Cut Tanzanite Gemstone 4.62 CaratsOne 4. 62 carats square step cut tanzanite, blue violet exceptional (50% 50%) color, VS1 clarity, cut grade very good, measuring 9. 8 mm wide, 9. 8 mm long, 5. 8 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 59. 2%, table width 58%. The overrall quality rating of this tanzanite is 953 out of 1000. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with This