What does AG925 M and P mean on a ring?

AG925 M and P on a ring indicate the metal's composition and the manufacturer's mark. "AG925" signifies that the ring is made of sterling silver, which contains 92.5% silver and 7.5% other metals, typically copper. The "M" and "P" likely refer to the specific manufacturer's initials or a design code. These marks help identify the quality and authenticity of the jewelry.