Regarding this, what is the difference between tiaras and crowns?
A crown is circular whereas a tiara issemi-circular and only covers half the head. A tiara istypically worn by women whereas crowns can be worn by bothmen and women. Crowns are often more colorful and elaboratethan tiaras. A crown is a representation of power,authority and royal status.
In this regard, can princesses wear tiaras?
Other queens, empresses, and princesses regularlywear tiaras at formal evening occasions. Tiaras areworn by women around their head or on the forehead as a circlet onvery formal or high social occasions. Tiaras are frequentlyused to "crown" the winners of beauty pageants.
A crown is a traditional symbolic form ofheadwear, not hat, worn by a monarch or by a deity, for whom thecrown traditionally represents power, legitimacy, victory,triumph, honor, and glory, as well as immortality, righteousness,and resurrection. Crowns worn by rulers often containjewels.