Tiara (noun)

A jewelled head ornament worn by women, typically as a symbol of high rank or as a form of adornment.

Origin:

Early 18th century: from french, from italian tiara, from latin tiara, from persian tāj, tāj-kāra "crown".

Examples:

1. She wore a tiara to the ball.
2. The princess wore a tiara made of diamonds.
3. The tiara was passed down through the generations.
4. She had her hair styled to show off her tiara.
5. The tiara was the centerpiece of the jewelry collection.