14k Gold Created Opal Round Stud Earrings Synthetic black opal black base ball earrings 6mm Stud design, 14kt cup and post Friction back Manmade opal Kyoto Japan method You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.