How does it stay secure on your head?

You can see the silver wire on the back side of this tiara. That's my support structure for the entire tiara. But the silver wire has another function: hair pins go over it to be secured to your hair. Similarly, there are "horse hair" loops on both sides (not visible in this photo) that attach to your head with hairpins.

I offer a choice of two horse hair loop colors on all Prima Korona tiaras, one for dark hair and the other for very light blond hair.