On Hold for Jane Violet Blue Step Parallelogram Tanzanite Gemstone 12.57 CaratsOne 12. 57 carats step paralellogram tanzanite, violet blue exceptional color (mostly blue), FLAWLESS TO VVS clarity, cut grade excellent, measuring 12. 4 mm wide, 13. 1 mm long, 9 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 72. 58%, table width 48. 4%. The tanzanite also has a crown angles of 45 35 25 and a pavilion angles of 41 48 55. Overall quality rating is 990 out of 1000.