10 most expensive celeb engagement rings of all time (With Pictures)

8. Catherine Zeta-Jones ($2.5 million)

When Catherine Zeta-Jones got engaged to fellow actor Michael Douglas, he spent a pretty penny on her ring. Sure, they’re both rich and the $2.5 million dollars wasn’t as big of a splurge as it would have been for a man with a smaller salary. However, that doesn’t make the jewelry any less beautiful. The ring is 10 carats and the diamond is in a marquis shape. The ring is especially unique because the feature stone is set horizontally. There are smaller diamonds surrounding the main stone, and along with the diamond wedding band that Douglas purchased, the jewelry has a classic vintage feel with a twist.