Pin has wringing on back side in small space and even w loupe couldn't read it. Since I don't fool around with acid anymore (2nd degree burn) I brought it to a jeweler who acid tested it. There is one small "flaw" as shown: A Piece of "wire is bent or not in place. It is on the backside so it cant be seen Can probably be bent in to place but knowing my luck. I didn't want to fool with it. "Scrap value as of today is $758. I am saving for a hip replacement that my insurance doesn't cover the first 4 days of my hospital stay and I need someone to care for my dogs. I have severe osteoarthritis of the left hip and I am out of shots. Measurements in photos odor free super fast shipping