engaged

The holidays are one of the biggest times of the year to get engaged. Now that you've decided to pop the question, how do you know which ring to buy?

Mary-Kate Olsen is off the market, officially. The former 'Full House' actress, fashion designer and one-half of the Olsen Twins is reportedly engaged to her much-older boyfriend Olivier Sarkozy.

Spencer Hastings is engaged! Well, not exactly. But Troian Bellisario will be tying the knot with boyfriend Patrick J. Adams, PEOPLE reports.

Lana Del Rey is betrothed. The singer is secretly engaged to her musician boyfriend, according to reports.

UPDATE: People confirms that Johnny Depp and Amber Heard are in fact engaged. Eternal hunk Johnny Depp and Amber Heard are reportedly engaged.

Another star got engaged over the holidays. 'Vampire Diaries' star and former model Olga Fonda -- she plays Nadia on the supernatural series -- is now off the market, as she is engaged to her boyfriend, Liam Waite. Congrats to the insanely attractive pair.

Actress Emma Roberts, the niece of superstar A-lister Julia and daughter of her brother Eric, is said to be engaged to her boyfriend Evan Peters, who is also her co-star on 'American Horror Story: Coven.'

In most relationships, it's usually the man who shops for engagement rings, sometimes with input from his beloved. Unless, of course, he is planning to pop the question and have it be a total surprise. However, former actress and fashion designer Mary-Kate Olsen, 27, was seen shopping for engagement rings while in L.A. Is she planning to wed her boyfriend Olivier Sarkozy, 44?

'Gossip Girl' actress and singer Leighton Meester and former 'The O.C.' star Adam Brody have been quietly dating for the past year or so. They stay out of the spotlight, but word is the handsome and talented pair are now engaged to be married.

The newly-off-the-market Ciara flashed her brand new, 15-karat engagement ring from fiance, rapper Future, at the Moet Rose Lounge event (Oct. 28) in Houston in her home state of Texas. That's some rock.

'Big Bang Theory' actress Kaley Cuoco has found her knight in shining armor in tennis player Ryan Sweeting after only three-months of dating (following a possible PR romance with Henry Cavill). The duo are engaged to be married.

Her series 'Pan Am' may have flopped, but Christina Ricci did get something pretty important out of it -- a fiance. She's engaged to James Heerdegen, a camera technician she met during production.