I took a class last fall on wire wrapping. I was hoping the class was more than was taught to us so I'll seek out YouTube for further studies.
In any event, here is the result.
By using specific silver wire made for wrapping I wrapped around the stone and made a loop at the top to be able to secure it to the chain.
I cut a length of 20" chain, added a lobster claw for the closer.
This is being donated for a benefit.