The "Wicked" actress’ engagement ring collection has an estimated worth of $1 million. Before Ariana Grande and her Wicked co-star Ethan Slater became an item, she was a fiancée two times over.

See the engagement rings of Zendaya, Selena Gomez, Ariana Grande, Demi Lovato, Hilary Duff and more Burt Harris/PI via ZUMA Press Wire/Shutterstock; Image Press ...