The Belgian Chevalier Crown is a crown of rank
The term Chevalier comes from French and refers to a knight in Belgium and France and is a title of the middle nobility.
The Chevalier’s crown consists of a browband with five visible prongs, each with a pearl at the tip. A silver cord is wound around the hoop between the prongs.
It has a resemblance to the German noble crown. Only here the cord is missing.