What does z stand for on a stamped gold ring?

On a stamped gold ring, the letter "Z" typically indicates the ring's size, specifically referring to the British sizing system. In this system, sizes are denoted by letters, with "Z" being one of the larger sizes. Additionally, if the "Z" is accompanied by a number (like "Z+1"), it indicates a size larger than "Z." Always check with a jeweler for precise measurements and sizing information.