Natural Unheated Square Cushion Tanzanite Gemstone 8.66 CaratsOne 8. 66 carats square cushion tanzanite, natural blue brown color, VS1 clarity, cut grade excellent, measuring 11. 3 mm wide, 11. 4 mm long, 9. 4 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 82. 8%, table width 46. 7%. Natural unheated color. High quality cutting. Heated this would be a top color gem with excellent brilliance. Customize a Ring or Pendant with This Gemstone? Did