This is a replica of the ring worn by Zander Vorkov as Dracula in Al Admson's 1971 masterpiece Dracula vs Frankenstein.

What I've made is the top only. It needs to glued onto a ring - I highly recommend Hoodlum's Blank Signet Ring - that's the one I used here. I find it's easier to print them out separately and glue them together - that way you don't need any supports.

The ring will need sanded. At this scale, those ridges really stand out, but a good going over and some primer will keep that eyeball from having a pupil!

Signet Ring Blank No Sharp Edges by Hoodlum
https://www.thingiverse.com/thing:5024027