Emergency wedding ring

Have you ever needed an emergency wedding ring?
- Want to marry your love immediately?
- Want to spend to price of the wedding ring on a new 3D printer?
- Lost you real ring, and need a decoy until you find it or buy a new one?
- Want to dress as Frodo next Halloween?
- Have a professor who is overly conservative and gives better grades to married students? (real story)

If you have answered yes to any of the questions above, then you are covered.
This ring can be printed easily under 8 minutes with 100% infill. I have printed it by eSun Silk filament, it looks surprisingly decent.
I have "pianist" hands, the inner diameter is 17 mm, rescale it accordingly.