Tiaras are this year's must-have adornment, with price tags that start at $9.99 and top out north of $400,000, the AP reports. Hello Kitty wore hers to the Macy's Thanksgiving Day Parade, and girly girls of all ages—especially those with money to burn—find that the trend is turning heads.
When luxury jeweler Harry Winston sold two tiaras in 2 weeks in the US last year, one exec found it "shocking." The fancy headgear is more of a European tradition, especially for events like state dinners. Only crowns are more formal, but they're usually reserved for royals. A tiara can go anywhere—even a parade.