Stanley London Sterling Silver Compass Rose Locket with Working Compass The Compass Rose Design locket features a handsome, highly polished compass rose design lid. These quality Sterling Silver compass lockets have ornate hinged covers that open to reveal 5/8 inch (15.9 mm) diameter working compasses. The lockets are stamped "925" to designate the quality Sterling Silver content (92.5% pure silver). This fine compass locket weighs 0.26 ounces (7.5 grams), measures approximately 3/4 inch (18.54 mm) in diameter and approximately 3/8 inch (9.39 mm) thick. This locket comes in a high quality hinged gift box.