This is an approximately 1" black and white swirl polymer clay pendant made using a bottlecap as a mold. It was given a glossy glaze on the front and sides. It is on a 7mm silvertone ring and approximately 1/4" thick with a flat back.
Disclaimer: there is a little bit of red clay around the back edges of the piece, you can see it in the photo if you look close, but it's not noticeable unless someone is really looking at it. This was due to an accidental touching of items during baking or fabrication.