Blue Violet Exceptional Trilliant Cut Tanzanite Gemstone 4.11 CaratsOne 4. 11 carats trilliant cut tanzanite, blue violet exceptional color, VS2 clarity, cut grade very good, measuring 9. 8 mm wide, 9. 6 mm long, 7. 3 mm deep. The proportions of the tanzanite are as follows: total depth 74. 5%, table width 56%. The overall quality rating of this tanzanite is 850 out of 1000. Tanzanites are enhanced by heating