Mary-Kate Olsen Flashes Vintage Diamond Ring: Newly-Engaged Star Attends Paris Fashion Week Show With Sister Ashley

Mary-Kate Olsen flashes her engagement ring in Paris on March 6, 2014
 Marc Piasecki/GC Images

That's amour! Mary-Kate Olsen flashed her giant diamond engagement ring while attending the Louis Vuitton fall 2014 show in Paris on Thursday, Mar. 6. Joining the newly-engaged star was her twin sister Ashley.

The Row designers, 27, both attending their friend Nicolas Ghesquiere's first show ever for the French fashion house, wore head-to-toe black outfits and aviator shades.

PHOTOS: The best celeb engagement rings ever

Read article

StyleCaster reported Wednesday that the petite blonde's engagement ring from Olivier Sarkozy is actually a vintage Cartier from 1953. It was reportedly purchased at a Sotheby's jewelry auction in NYC on Feb. 6. (Us Weekly exclusively broke the news last Friday, Feb. 28, that the Full House alum was engaged.) The ring, according to StyleCaster, once belonged to a Tennessee-based collector. It features a four-carat European-cut diamond, surrounded by sixteen tiny sapphires and set in multiple interlaced gold bands. The item was purchased for $81,250.

PHOTOS: The Olsen twins through the years

Read article

As previously reported, the Olsen family is thrilled about the star's engagement to the significantly older banker, 44. "Mary-Kate's family thinks Olivier is the best thing to happen to her," an insider tells Us in the Mar. 17 issue. "They love him."

PHOTOS: Mary-Kate or Ashley -- whose style do you like better?

Read article

This will be Mary-Kate's first marriage and Sarkozy's second. The half-brother of former French president Nicolas Sarkozy shares two children, son Julien, 12, and daughter Margo, 10, with his first wife of 13 years, Charlotte Bernard. "She thinks he's a great dad," a source told Us of Mary-Kate.

The lovebirds live together in a $6.25 million townhouse in NYC. Tell Us: what do you think of her rock?

For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!