What should I use for a top coat on my ring? : jewelrymaking

Idk if this is the place to ask this but its similar enough where I think it fits. I bought a ceramic inlay ring from woodcraft that you can do yourself, and I am putting white opal and glow powder into it and was wondering what adhesives I should use to put it all together. I found that thin CA glue should be used after I place the glow powder in, and I was gonna use thick CA glue to attach the opal to the ring.

Where I get confused is when it comes to top coat. I don’t have a lathe or a UV light for UV resin, so I was wondering what material I should use for the top coat. I would like it to bee clear and able to be polished.

Any advice helps 🙂

https://www.youtube.com/watch?v=WJmK_OmeWxc this is essentially what I am trying to do