Hopefully this will be a fun project for everyone! I've sketched a couple ideas, hopefully they will help rather than constrain creativity.

* In the attached sketch, I prefer using the second one (which potentially uses the 'S' as a tail) as a starting point.
* I'm open to other ideas however!!
* Spelling can be either Oger Stone (with a space between words) or OgerStone (no space) depending on what looks best on the logo.

Practical issues:
* Logo need to avoid lots of fine detail, gradients, or many colors. 
* Logo could, in theory, be stamped or laser engraved on metal, so it needs to have the main elements bold enough to be somewhat recognizable (not super critical, but a thought)

Thanks to all in advanced!

Oger Stone - Rustic Mythic Jewelry