The designs for tiaras and crowns differ, too. As Jewelry Shopping Guide explains, a crown is always a full circle, while a tiara is sometimes only semi-circular.

In an interview with Town & Country in 2018, jewelry expert Geoffrey Munn explains that the tiara, unlike the crown or coronet, has "never been a symbol of wealth or position." ...

For the record, tiaras shouldn’t be confused with crowns. “Anyone can wear a tiara, assuming it's the right occasion. Crowns, however, connote state power,” pointed out royals expert Arianne ...

Crown Princess Victoria's most recent tiara outing was in October 2022 during the Dutch State Visit. Victoria donned the Napoleonic Amethyst Parure Tiara which perfectly complemented her purple dress.