What describes the carving style known as cameo?

The correct choice accurately describes the carving style known as cameo, where a design is raised or projects from the surface of the material. This technique typically involves creating a relief image so that the foreground is carved out while leaving the background level, giving the appearance that the image is "popping out." This distinctive raised effect is what sets cameos apart from other types of carvings, making them easily recognizable.

Cameos are often made from materials like shell or stone and can depict various subjects, including portraits or scenes, which emphasizes the depth and dimension invoked by the projecting design. This characteristic is essential to understanding the artistry involved in cameo carving and its historical significance in jewelry and decorative art.

Other options refer to different concepts: polished gemstones with engravings pertain to intaglio techniques, where designs are cut into the surface rather than raised, while enhancing gemstone clarity involves treatments not related to carving styles. Geometric patterns do not specifically denote the raised design characteristic that defines cameo work.