It seems someone I have never heard of, Lil Uzi Vert, had a diamond inserted in his forehead. I have no idea why this guy is famous and I'm not curious enough to look him up, but he got a story written in GQ about how this is possible. His piercer, Sean Dowdell, used "what's called a surface piercing to get the diamond onto his face. A surface piercing, which can also be done just about anywhere on the body, looks a little like an upside-down staple: the needle pierces the skin, makes a 90-degree turn, and emerges an inch or so from where it entered."
Normally for gem piercings a microdermal or transdermal implant is used (depending on the size of the anchor foot), exposes a threaded post that jewelry can be screwed onto." But this diamond was too big for this and Dowdell warned if that technique had been used, there was a chance of infection and "If he got hit in the face, it would rip half his forehead off."
Another piercer, this time a celebrity piercer, Keith Thompson weighed in: "he isn't optimistic about the healing process for Uzi's diamond. A fitful night of sleep or even a kiss at the wrong angle can cause the body to reject a surface piercing, which could take over a year to heal."
It's Saturday so why not read about nutty piercings.