Ring of the legendary snoke in Star Wars.
Think about ordering the stone that goes on top.
The size 13 is actually a very large size 23mm5 inner (excluding table standards)
Link to rhinestone :
https://www.shapeways.com/product/S2YPM98SU/ospidienne-rehaussee?key=fd69f1e4d279a065b3ecae9347228004