JP on a ring is a hallmark which stamp is used by a famous jewelry business named Jack Pilatowicz. Jack Started his company in 2007 in Brisbane, Australia, soon after 20 years of experience inside the jewellery manufacturing field. Writer Kristen Cavanaugh Kristen Cavanaugh is a manner writer and blogger; https://slot-maxwin21864.ltfblog.com/35720241/jp88-an-overview