What does an 800 stamp on a cameo mean?

An 800 stamp on a cameo indicates that the piece is made of silver that is 80% pure, which is equivalent to 800 parts per thousand. This mark reflects the quality of the silver used in the jewelry, distinguishing it from sterling silver, which is 92.5% pure. Cameos with this marking are often associated with European craftsmanship, particularly from Italy and Germany, where such standards are commonly used.