Tiara
The tiara is a form of iconic attire that is extremely iconic of specifically the princess-tier, being near-universal among all sluts of this tier. A tiara is often borne to signify one's status beyond being "merely" immortal, associated with the superhuman capabilities and royalty (and hyper-wealth) often associated with princesses. It is rare, perhaps impossible, for a slut below this tier to project one.
Prevalence.
This practice is so widespread in part because it is thought to advertise the slut's value to You, with the admittedly selfish belief it could lead her to being chosen. Needless to say being the one-in-a-million to be chosen or used by You for literally anything is a prize few can resist! Even among the most selfless princesses it can be seen as a dishonor or insult to not wear a tiara.
Appearance.
Most often a tiara resembles the kind with which You are presumably familiar: a semicircular headpiece. Sometimes it rests gingerly upon one's head, sometimes it's interwoven with hair, and other times it is worn atop the forehead almost like a headband. Flowers and motifs are particularly popular. Precious metals like gold and silver are prevalent too, as well as gemstones like sapphires, rubies, emeralds, and diamonds. Often the chosen gemstones or flowers reflect the bearer's personal color.
Upgrades.
Relatively supernatural metals and gemstones are more prevalent in super crowns. Just as tiaras are iconic for princesses, super crowns are iconic for empresses, halos for goddesses, and hectohalos for galagoddesses. If a slut ascends to a new tier, her headpiece often evolves accordingly without her even consciously thinking of it.
