A tiara is a headpiece commonly worn by the celebrant at a quinceañera.
The tiara complements the formal dress and gives the celebrant a ceremonial, princess-like appearance. It may be presented during the event or placed as part of the preparation before the reception. Designs range from simple metal bands to elaborate jeweled pieces.
A tiara is an accessory rather than a universal requirement. Quinceañera traditions vary by country, religion, family, budget, and personal preference, so some celebrants choose a crown, comb, flowers, or no headpiece.
The tiara is also distinct from the court of attendants. A court may accompany the celebrant, but the headpiece is worn by the quinceañera herself.