18K yellow gold Robert Coin Circle ring from the "Silk" collection. The inside of the ring is set with Roberto Coin's Signature Ruby. Ring is stamped "RC" and "18K Italy". The shank measures 3.0 mm in width.The "Circle" measures 24.0 mm in diameter. Ring weighs 7.5 grams gross. Roberto Coin jewelry bag included. The item "Roberto Coin 18K Yellow Gold Silk Circle Ring" is in sale since Sunday, April 29, 2018. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Precious Metal without Stones". The seller is "pumpernk" and is located in Park City, Utah. This item can be shipped to United States.