Round Brilliant Cut Tanzanite 1.18 CaratsWeight: 1. 18cts Cut: Round Brilliant Color: 30% Blue 70% Violet Size: 6. 5mm wide x 6. 5mm long x 4. 3mm deep Clarity: VS1 Rating: 920 1000 Treatment: Heated Cut Grade: Good One 1. 18 carats round brilliant cut tanzanite, blue violet vivid (30%blue 70%violet) color, VS1 clarity, cut grade good, measuring 6. 5 mm wide, 6. 5 mm long, 4. 3 mm deep; with good polish and good symmetry. Tanzanite is heated to enhance its color. The overall quality rating