Hugues and Kenzie - you are both correct. Any paint or coating will smooth out the surface but will come at the expense of resolution. The thicker the paint, the more resolution will be lost.

Kenzie - thanks for the offer for the design!

https://grabcad.com/library/graduation-ring

We are going to contact the designer for permission. Would this ring work for you guys? Please let us know.

Thanks everyone!