Blue Violet Hexagon Shapred Tanzanite Gemstone 4.68 CaratsOne 4. 68 carats hexagon cut tanzanite, blue violet exceptional color, 10X LOUPE CLEAN clarity, cut grade excellent, measuring 9. 8 mm wide, 11 mm long, 6. 4 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 65. 3%, table width 41%. The overall quality rating of this tanzanite is 992 out of 1000. Tanzanite is color enhanced by heating.