A few weeks ago I attended a jewelry making class with a friend and made this wire wrapped pendant (or cabochon).
It was not difficult at all, and did not take long. Before class, we were instructed to purchase a flat, symmetrical stone, to make the process easier. While it did not have to be a circle, we were instructed that anything symmetrical like an oval, circle, teardrop, etc. was easier to work with than an amoeba. The stone does not need to have holes in it, and if it does have holes, they should not be easily visible. Also needed for the project is flat wire and a small gauge round wire of the same color, as well as wire cutters and a few other materials.
When I was done I put it on a leather cord I already had, but it could go with a regular chain, or perhaps a pale mint colored ribbon to match the stone.