Mary-Kate Olsen's Engagement Ring: All the Details!

Last week, news broke that the former Full House star is engaged to her French banker boyfriend, Olivier Sarkozy. She's been spotted wearing a massive ring, and now we have all of the details!

The vintage Cartier ring dates back to 1953 and was sold through Sotheby's in February for $81,250. The floral-inspired ring features a 4-carat center stone, framed by 16 calibré-cut sapphires; the "petals" seen on the side view add another 1.5 carats of diamonds.

mary kate olsen engagement ring
Photos courtesy of Sotheby's

Tell us: What do you think of the ring?

—Kristen Klein