Here is one of the rings I cast last week. The casting did not turn out (it has a lot of voids) but I wanted to set it any way. I like the way it looks set with the spinal but the design is technically not very good. I should have allowed for a way to access the stones from under them. Without this, it is impossible to clean the lubricant (used during setting) from under them. It also does not allow me to thoroughly test the tightness of the settings.
I have some ideas on how to fix the other waxes that I made from the same mold; but I think I will just carve a knew one and be done with it.