Blue Violet Pear Shape Tanzanite Gemstone 3.83 CaratsOne 3. 83 carats pear shape tanzanite, blue violet exceptional color, VS clarity, cut grade excellent, measuring 8. 7 mm wide, 11 mm long, 6. 8 mm deep; with very good polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 78. 2%. The overall quality rating of this tanzanite is 900 out of 1000. This tanzanite is color enhanced by the typical heating.