What does FM 80 mean when stamped on jewelry?

Answer 1

FM 80 stamped on jewelry typically indicates that the piece is made from a metal alloy that contains 80% of precious metal (often gold or silver) and 20% of other metals. The "FM" may refer to the manufacturer's initials or a specific brand. This marking helps consumers identify the quality and composition of the jewelry. Always consider consulting a professional for verification of authenticity.