14k White Gold Emerald Cut Tanzanite Ring with Diamond Accents 3.46 CaratsOne 14 karat white gold ring set with a 3. 46 carats emerald cut tanzanite, blue violet exceptional (40% 60%) color, flawless to VVS clarity, cut grade very good, measuring 7. 8 mm wide, 10. 1 mm long, 5. 2 mm deep; with very good polish and very good symmetry. The proportions of the tanzanite are as follows: total depth 66. 7%, table width 38%. The overall quality rating of this tanzanite is 925 out of 1000. Tanzanites are enhanced by heating.