Violet Blue Oval Tanzanite Gemstone 10.28 CaratsOne 10. 28 carats oval tanzanite, violet blue exceptional (15% 85%) color, FLAWLESS TO VVS clarity, cut grade excellent, measuring 13 mm wide, 16 mm long, 7. 5 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 57. 7%, table width 55. 4%. The overall quality rating of this tanzanite is 966 out of 1000. Tanzanite is color enhanced by heating. This gem has the color of a fine Kasmire