Blue Violet Square Step Cut Tanzanite Gemstone 4.38 CaratsOne 4. 38 carats square step cut tanzanite, blue violet exceptional (30% 70%) color, FLAWLESS TO VVS clarity, cut grade excellent, measuring 9. 1 mm wide, 9. 1 mm long, 7. 1 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 78%, table width 47. 2%. Cut by Steve Moriarty. Tanzanite is color enhanced by heating. The overall quality rating of this tanzanite is 983 out of 1000. Customize a