Princess Tiana costume topper (5)

I believe the answer is:

tiara

(Other definitions for tiara that I've seen before include "Crescent-shaped headdrsss or Pope's diadem" , "Jewelled headpiece" , "Pope's triple crown" , "Small crown" , "Jewelled headwear" .)

I've seen this clue in the LA Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.