So I made my own assassin's creed ring. On the front side you can see the AC logo with some nice tribals next to it, and on the back side the abstergo logo.
With special contur on the inside, it's not straight it's curved (see the picture)
If you want a perfect smooth surface, you need to chose silver polished
You can find the exact measures on the draw (see the picture)
If you need another inner diameter for the ring, feel free to contact me.
1 w x
2.2 d x
0.394 w x
0.866 d x