Buy it here →One 10.04 carats oval tanzanite, violet blue exceptional (10%/90%) more blue color, VS1 clarity, cut grade very good, measuring 11.3 mm wide, 14.1 mm long, 8.4 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 74.3%, table width 56.6%. The overall quality rating of this tanzanite is 965 out of 1000. Tanzanite is color enhanced by heating.