JP on a ring is an indicator and this stamp is used by a renowned jewelry organization named Jack Pilatowicz. Jack Started his firm in 2007 in Brisbane, Australia, immediately after twenty years of expertise inside the jewellery production business. S925 ALE 54 refers to an international standard for sterling https://casper77gatesofolympysmax62210.blogrelation.com/43187176/jp88-an-overview