The headpiece commonly placed on a quinceañera during her celebration is a tiara. It gives the celebrant a formal, princess-like appearance and is often presented by a parent or another important family member.
The tiara may be part of a larger ceremonial presentation. Depending on local custom, the celebrant can receive it during the reception, after entering the venue, or during another symbolic moment. Its design may coordinate with the dress, jewelry, shoes, and decorations, ranging from a simple jeweled band to an elaborate crown.
A tiara is not required for a quinceañera. Families may substitute a hair accessory, floral piece, or no headpiece at all. It should also not be confused with a Catholic veil or with a wedding crown. The tiara’s meaning is cultural and celebratory: it highlights the guest of honor and marks the importance of the fifteenth-birthday milestone.