If a hoop has P4SR published on it, it implies that it's been created from a combination of white gold and platinum. SETA is a company that offers style jewelry. Their jewelry ordinarily has a CZ plating above silver. M on a hoop denotes Milor, that is an Italian silver https://casper77situsjudionlinete56677.designi1.com/57709525/the-smart-trick-of-jp88-that-nobody-is-discussing