The Crown of the Empress Eugenie – Louvre, Paris France.

Crown-Head Dress

A crown is a circular head-dress, usually crafted in gold and augmented by gemstones, that is worn as a sign of sovereignty or royalty and is usually reserved for ruling monarchs. The ornamentation on a crown typically rises vertically from the circle leaving the center open or the ornamentation may intersect in the center closing over the top.