164 - Large Antique Russian Diamond, Enamel and 14 Karat White and Yellow Gold Dome Ring Set with a Center .50 Carat Round Brilliant Cut Diamond on a Star Pave Set with Single Cut Diamonds and Further Accented with Bezel Set Single Cut Diamonds. Unsigned. Center Diamond G-H Color, VS1-VS2 Clarity. Good Condition or Better. Ring Size 7-3/4. Approx. Weight: 12.10 Pennyweights. Shipping $28.00 (estimate $2,500-$3,000)