Natural Untreated Square Step Cushion Tanzanite Gemstone 33.53 CaratsOne 33. 53 carats square step cushion tanzanite, natural color, VS1 clarity, cut grade excellent, measuring 17. 8 mm wide, 18. 1 mm long, 14. 5 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 81%, table width 36. 6%. Cut by Steve Moriarty. Unheated natural color. Should heat to an intense to vivid color with a mix of blue and violet with outstanding brilliance. Customize a Ring or