If a ring has P4SR prepared on it, it implies that it has been produced from a combination of white gold and platinum. SETA is a firm that gives vogue jewellery. Their jewellery commonly contains a CZ plating about silver. M on a hoop denotes Milor, that's an Italian silver https://casper77dijaminjackpotdan57801.blogoxo.com/37131942/how-much-you-need-to-expect-you-ll-pay-for-a-good-jp88