Can “JP” also stand for another nation? While “JP” usually means Japan in jewellery marks, it is important to think about the overall context along with other markings over the piece. M on a ring denotes Milor, that's an Italian silver jewellery producer. 925 signifies that the jewellery is fabricated https://onix-casper7766654.webbuzzfeed.com/37365238/about-jp88