Worlds Rarest Natural Color Tanzanite 29.63 CaratsOne 29. 63 carats barion style emerald cut tanzanite, VVS2 clarity, cut grade excellent, measuring 14. 6 mm wide, 18. 5 mm long, 13 mm deep; with excellent polish and excellent symmetry. The proportions of the tanzanite are as follows: total depth 89. 04%, table width 46. 6%. Natural unheated. I have only seen this color twice in my 40 years. It shows a full rainbow of colors with intense reds and blues. The last one I took on a flight to G. I. A. to