What Does MF Mean on Gold Jewelry? Decoding Jewelry Markings and Stamps
The “MF” on gold jewelry may stand for a manufacturer or importer mark. This mark shows who made the piece. The “M” could also be initials, like Mary or Michael. Jewelry marks indicate gold purity. For example, a 375 stamp means 37.5% gold content, while 24k signifies pure gold. In addition to “MF,” jewelry can … Read more