Blue Violet Pentagon Barion Tanzanite Gemstone 6.63 CaratsOne 6. 63 carats pentagon barion tanzanite, blue violet exceptional (50% 50%) color, FLAWLESS TO VVS clarity, cut grade excellent, measuring 10. 4 mm wide, 14. 5 mm long, 7. 3 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 70. 2%, table width 51%. The overall quality rating of this tanzanite is 971 out of 1000. Everything is near perfect except the stone is very deep in color which