Old cameo pin

I have a gorgeous old cameo pin that I believe was once my grandmother's. My mother gave it to me but she acquired it as a young child and can't remember who she got it from. Regardless, it's a family piece. But I don't wear pins! I think it would make a great ring or pendant, but I don't want to mess up the integrity of it.

Does anyone have suggestions on how to make it wearable? Thanks a million! I'll try and get some photos of it in the meantime.