Natural Unheated Stepped Antique Cushion Tanzanite Gemstone 9.91 CaratsOne 9. 91 carats stepped antique cushion tanzanite, natural diesel color color, VS1 clarity, cut grade excellent, measuring 11 mm wide, 12. 3 mm long, 9. 2 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 83. 6%, table width 41. 8%. Natural unheated color. This could heat to a top gem tanzanite with a 980+ rating. Customize a Ring or Pendant with This Gemstone? Did you know that we