10.73 CT TANZANITE RING IN PLATINUM: 10.73 CT tanzanite is set within diamond ribbons supported by an elaborate lattice under gallery and cut out shoulders. 40 round brilliant cut diamonds approx 1.47 CTW are rated VS2-SI1 in clarity and F-H in color. Size 7. Weight 10.70 grams. Sold with current Florida Diamond Appraisers GIANT graduates-appraisal for $13,750.