What does 950 P on ring mean?

The "950 P" mark on a ring indicates that the metal is 95% pure platinum, with the "P" denoting platinum. This signifies a high-quality standard, as platinum jewelry is typically alloyed with other metals to enhance durability. The remaining 5% usually consists of other metals such as iridium or ruthenium, which help improve the ring's strength and resistance to scratching.