These holow form rings are an open box  so to speak! I have hand textured the surface with a variety of tools to create interest. The first two feature a kyanite accent and the last a labradorite. Two of them feature some 14K gold accent.
 
The first ovalish is size 9-1/4"
The second (middle) is  size 9
The third is size 9
 
I will work on some smaller ones as well if you know your size and would like one!