Blue Violet Square Cushion Tanzanite Gemstone 1.71 CaratsOne 1. 71 carats square cushion` tanzanite, blue violet vivid color, FLAWLESS TO VVS clarity, cut grade very good, measuring 7 mm wide, 7 mm long, 4. 4 mm deep; with good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 62. 8%. Tanzanite is color enhanced by heating. Customize a Ring or Pendant with This Gemstone? Did you know that we design custom Tanzanite jewelry? We would love to help you design the