It is sometimes thought that only titled women are allowed to wear a tiara, but that is not true. Any woman can wear a tiara to events where the dress code "white tie" applies. However, events in hotels are excluded. Traditionally, young women do not wear a tiara until they are married.

A crown is circular (complete circle) while a tiara is semicircular and covers only half of the head. A tiara is typically worn by women whereas crowns can be worn by both men and women. A crown is a representation of power, authority and royal status instead a Tiara can be worn by brides and beauty pageant winners.

The main difference between a tiara and a diadem is the specificity of the shape. A tiara is a semicircular headpiece that typically arches upward toward the middle, while a diadem is a semicircular headpiece of any shape. All tiaras are diadems, but not all diadems can be classified as tiaras.

A tiara is a type of headpiece worn by women as a symbol of royalty, beauty, and elegance. The word "tiara" comes from the Greek word "tiara," which means "a type of crown." In many cultures throughout history, tiaras have been associated with power, status, and wealth.