DictionarydiademRoyal crown
noun

diadem

DYE-uh-dem/ˈdaɪədem/

A jeweled crown or headband worn as a sign of royalty.

The jeweled diadem rests on a red velvet cushion, its gold band gleaming.

A jeweled royal diadem displayed alone on a small deep-red velvet cushion, with its complete circular gold band and raised gemstone settings clearly visible.
Etymology

“Bind across” points to the royal headband underlying this word. A cloth band worn around the head as a sign of royalty supplied the name for a royal crown or jeweled headband.

In context

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a white ribbon a wreath of Laurel was the reward of distin citizens while a circlet of Golden Leaves was given to successful generals Caesar consistently refused the Royal white diadem which Anthony offered him
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More examples

  • The portrait shows the king wearing a golden diadem.
  • The royal diadem passes from one ruler to the next.
  • The museum displays diadems once worn by ancient rulers.

Forms

diadem · diadems

Similar words

crown
A broader term for royal headwear of various shapes.
tiara
Usually a jeweled semicircular headpiece, not necessarily a royal symbol.