18k Rose Gold over Sterling Silver Created Opal and Diamond Accent Drop Earrings All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Opal is October's birthstone. Imported 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.