Oval Cut Mostly Blue Tanzanite 6.72 CaratsWeight: 6. 72cts Cut: Oval Color: 80% Blue 20% Violet Size: 10. 6mm wide x 13. 1mm long x 7mm deep Clarity: VS1 Rating: 971 1000 Treatment: Heated Cut Grade: Very Good One 6. 72 carats oval tanzanite, violet blue exceptional (20%violet 80%blue) color, VS1 clarity, cut grade very good, measuring 10. 6 mm wide, 13. 1 mm long, 7 mm deep; with very good polish and very good symmetry. The overall quality rating of this tanzanite is 971 out of 1000.