Meaning of the word diadem in English

What does diadem mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

diadem

US /ˈdaɪ.ə.dem/
UK /ˈdaɪ.ə.dem/

Noun

a jeweled crown or headband worn as a symbol of sovereignty

Example:
The queen wore a magnificent diadem during her coronation.
The ancient princess was depicted with a golden diadem on her head.