Starting a Ring and then add a pattern

Hello all,

I have a definition that makes circles from 0,0,0 to US ring sizes.

I have now extruded to each side to make finger opening. Not sure if this is necessary. I may have deleted this.

Where to go now and what I hope to achieve.

1. Make a profile with closed polyline in Grasshopper that will revolve the ring size to create ring. I could do this in Rhino I suppose and link in Grasshopper, but then not sure how to change ring size and keep profile curve to the size circle. I have 2 different attempts at a profile curve. 

2. Once ring base is done. Make Celtic knot like pattern that will increase or decrease in length with ring size changes So pattern stays the same for each ring size. Flat pattern and flow along surface maybe?

Any ideas would be helpful.

Thanks in advance and I am including my first definition.

Randy