Genuine and authentic new Roberto Coin Opera 18K Yellow Gold Door Knocker drop Earrings. The attractive earrings are 1″ (25mm) long by 5/8″ wide. The top of the earrings have a lovely textured design. The backs of the earrings have the signature ruby, RC, 18k, Italy, and. Registered Italian hallmark 1226VI. They have a post…