Blue Violet Antiques Cushion Tanzanite Gemstone 2.22 CaratsOne 2. 22 carats antique cushion tanzanite, blue violet vivid color, FLAWLESS TO VVS clarity, cut grade very good, measuring 6. 7 mm wide, 9 mm long, 4. 4 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 65. 7%, table width 56. 7%. Tanzanite is color enhanced by heating. The overall quality rating of this tanzanite is 905 out of 1000.