52 - Important Platinum, Sapphire and Diamond Ring Set with Gem Quality Ceylon Sapphire Weighing 11.92 Carats with Strong Saturation of Color. The Mounting Pave Set with 2.43 Carats Round Brilliant Diamonds of E-F Color and VS1 Clarity. Signed 18K. Very Good Condition. Ring Size 6-3/4. Signed Plat 900 and Carat Weight. Shipping $20.00 (estimate $20,000-$25,000)