A crown or tiara.
I am wearing a diadem.
The diadem was one of Tom Riddle's Horcruxes. A diadem is like a sort of crown.
Diadem of gold or precious stones.The queen wore diadem of jewels and gold
Depending upon the context, it might mean that the princess was out in public "incognito"; that is, without her obviating designation of authority, her diadem. Or she might have just been comfortably hanging around the palace, not intending to entertain guests.
Operation Diadem happened in 1944.
the diadem was very delegate and is very symbolic
how do i know ask some one else
If you mean her symbols, then the pomegranate, the peacock feather and the diadem.
A zodiac diadem is an ASTROLOGICAL CROWN. or something very similar to that.
Madonna with the Blue Diadem was created in 1511.
Mograbin diadem snake was created in 1923.
The diadem was hidden in the Room of Requirement