What is the material?

by Diane Boulet
(Lansing, Michigan)

I had a customer drop a cameo off for us to look at. They were wondering what it is made of and is it of any value. I have attached a photo. The outside bezel of this cameo is in 14 karat yellow gold. It has a straight pin with a C like catch. Hand etched on the back is the number 1812. There is also a pair of matching earrings done in the same material, surrounded by 14 karat yellow gold rope style bezels on french wire earring findings. Any help would be appreciated. Thanks Diane Boulet, Hampton Jewelers, Lansing, MI