JP on a hoop is a trademark and this stamp is utilized by a renowned jewelry organization named Jack Pilatowicz. Jack founded his company in 2007 in Brisbane, Australia, after twenty years of experience while in the jewelry manufacturing field. S925 ALE 54 refers to an international standard for sterling https://rafaelqguht.activosblog.com/35655461/helping-the-others-realize-the-advantages-of-jp88