For Elizabeth Tanzanite Near Perfect Portuguese Round 28.51 CaratsOne 28. 51 carats round brilliant cut tanzanite, natural color, FLAWLESS TO VVS clarity, cut grade excellent, measuring 17. 2 mm wide, 17. 3 mm long, 14. 2 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 82. 3%, table width 58%. Cut by Steve Moriarty in a 145 facet portuguese round.