Blue Violet Vivid Round Brilliant Cut Tanzanite Gemstone 1.88ctsWeight: 1. 88cts Cut: Round Brilliant Color: 30% Blue 70% Violet Clarity: VS1 Size: 7. 8 mm wide, 7. 8 mm long, 5 mm deep Quality: 920 1000 One 1. 88 carats round brilliant cut tanzanite, blue violet vivid (30%blue 70%violet) color, VS1 clarity, cut grade good to very good, measuring 7. 8 mm wide, 7. 8 mm long, 5 mm deep; with good polish and very good symmetry. The overall quality rating of this tanzanite is 920 out of 1000. Tanzanite is heated to