26 - Important Ladies Platinum, Diamond and 17.98 Carat Tanzanite Ring. Ring Size 7. Contains 12 Round Brilliant Cut Diamonds of F-G Color VVS-VS Clarity. Weighing Approximately 4.64 Carats. Center Tanzanite Weighing Approximately 17.98 Carats. Signed Plat, and a Makers Mark. Top of Ring Measures Approximtely 1-1/8 Inches Long by a 1 Inch Wide. Shipping $20.00 (estimate $15,000-$20,000)