Circlet
/ˈsɜːrklət/
Definition 1 of 1
Pro Tip 1/3Jewelry Piece
A circlet is a type of jewelry specifically for the head, often seen in historical or fantasy settings. 
The princess in the fairy tale was described as wearing an emerald circlet.
Pro Tip 2/3Status Symbol
Circlets can symbolize royalty or high status, similar to crowns, but usually less elaborate. 
Knights bowed as the nobleman passed, his circlet signifying his lineage.
Pro Tip 3/3Metaphorical Usage
Sometimes 'circlet' is used metaphorically to describe anything in a circle that encircles something else. 
The poet spoke of the moon's circlet of light in the night sky.