A tiara is traditionally placed on a quinceañera’s head during her ceremonial presentation.
The presentation of the tiara is one of the symbolic rituals that may be included in the formal portion of the celebration. A parent, godparent, or another honored relative may place it on the honoree, depending on family practice.
The tiara represents dignity, honor, and the special status of the quinceañera during the event. It is usually coordinated with the formal dress and other accessories, although styles range from simple bands to elaborate jeweled pieces.
A tiara does not make the event a wedding. The two celebrations can share formal clothing, music, and ceremonial gestures, but a quinceañera is a coming-of-age celebration. Regional and family customs vary, so some modern honorees choose a different hair accessory or skip the headpiece altogether.