Go for it, Guys!
The nose piercing has generally been regarded as a feminine piercing, but today's culture allows men to be more expressive with their fashion options, and many men are choosing the nose ring or stud to complete their look.
In the 70s punk rock era it wasn't uncommon to see women and men with all sorts of facial piercings, particularly nose piercings. It was taboo, it was rebellious, and it challenged stereotypes.
Mostly commonly today, men are seen adorned with a simple silver or gold hoop but who's to say a man can't wear an amethyst, sapphire, ruby, or any other precious stone as nose jewelry?
Guys, keep rocking your nose jewelry! It's your nose, right? So rock it.