What is a "cameo"?

A cameo is a type of jewelry that features a raised relief image or design, typically carved from a precious stone such as shell, coral, or onyx. The design is usually in a contrasting color to the background, creating a striking and elegant effect. The most common shape for a cameo is oval, but they can also be found in other shapes such as circles or rectangles. Cameos are often set in rings, necklaces, or brooches and have been worn as a symbol of wealth and status throughout history. They were particularly popular during the Victorian era and are still highly sought after by collectors and enthusiasts today.