JP on a hoop is a hallmark which stamp is used by a well-known jewellery firm named Jack Pilatowicz. Jack Started his enterprise in 2007 in Brisbane, Australia, after 20 years of expertise while in the jewellery manufacturing market. S925 ALE 54 refers to a world standard for sterling silver https://andreylxjs.blogspothub.com/35859458/top-guidelines-of-jp88