Buy it here →One 10.83 carats emerald cut tanzanite, Vs1 clarity, violet blue exceptional (15%/85%) more blue color uniquely highlighted with green, cut grade excellent, measuring 9.2 mm wide, 16.5 mm long, 7.3 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 79.3%, table width 39.1%. Tanzanite is color enhanced by heating. The overall quality rating of this tanzanite is 978 out of 1000.