>I saw a video of someone making a ring out of polycrystalline diamond and…if that gets stuck for some reason, it's never coming off. Diamond is easy to remove

>I saw a video of someone making a ring out of polycrystalline diamond and…if that gets stuck for some reason, it's never coming off. Diamond is easy to remove: it'll melt with a blowtorch. (You didn't say the finger had to be preserved intact...)