How Can I Tell if My Cameo Is Resin or Shell?

Cameos are classic pieces of jewelry as well as small, intricate works of art. Designs can be either etched into the surface of the material or carved in relief, meaning the area around the subject matter is carved away, leaving the image slightly raised. Cameos can be made from many different materials and either carved by hand or by machine. However, the most traditional and popular cameos are hand-carved from shells. In recent years, cheaper cameos made of resin have been manufactured. Though the cameos can look very similar, there are ways to tell a shell cameo from one made of resin.

Instructions

1

Examine the coloration of the cameo. Both shell and resin cameos come in a variety of colors but shell cameos usually have delicate shading. A resin cameo's coloring may be more uniform.

2

Check the back of the cameo for any curvature or striations. Because conch and other shells are curved, the back of a true shell cameo may have a slightly curved shape as well. A shell cameo may also have lines, especially on the back, due to the natural growth of the shell from which it is made.

3

Perform the "hot pin" test by gripping a straight pin or needle with pliers and heating it with a match or lighter. Press the heated pin into an inconspicuous place on the back of the cameo. If the cameo surface starts to melt, allowing the pin to sink in slightly, it is made of resin.

4

Visit a professional jeweler if you still need help determining the material from which your cameo is made.