Let the wedding-dress predictions begin!

Fifteen months after Keira Knightley was introduced to Klaxons keyboardist James Righton, the face of Chanel's Coco Mademoiselle fragrance has announced that she's off the market. With a wispy figure and model-like features, the 27-year-old actress is every designer's dream bride. The question is: Who's going to be the lucky suitor?

"Karl Lagerfeld immediately comes to mind for Keira's big day," says celebrity stylist Sam Saboura. "Chanel is the perfect blend of edgy and feminine. Keira has a toughness and innocence about her. I'd like to see her meld the two."

Saboura, who has worked with Jennifer Aniston and Sarah Jessica Parker, cautions against anything too big or poufy. Knightley has a delicate frame. So anything with excessive layers of tulle or fabric could completely overwhelm. 

"I'd love to see her in a streamlined column that would show off her figure, not hide it," explains Saboura. "Lace is very big right now. So that would be very of-the-moment."

Pamela Watson, a stylist who's worked with Jessica Simpson, agrees. "Keira is so small-busted and thin that a traditional strapless wouldn't do her justice." Instead, Watson would prefer close-to-the-body lace overlays - a style Marchesa has made popular.

Two of the defining moments in Knightley's film career have been marked by high fashion. In 2003, she stepped onto the big screen in "Love Actually" in a fairy-like wedding gown that made male fans weak in the knees. Then, in 2007, she captured our hearts in "Atonement" with a slinky emerald-green gown crafted from silk, organza and chiffon. Both dresses were soft and unstructured, yet they wowed all the same.

That's the key, says Watson. Delicate but dramatic. "I like the idea of her doing something romantic and ethereal," says Watson. "It's also important that she expose some skin in the right places. Otherwise, she'll be swallowed up."

The same holds true for hair and makeup styles. Dark eyes, red lips and tons of hairspray would conceal Knightley's bone structure. Pale pinks, nudes, a messy updo or swept-back bun would highlight her features without detracting from them.

"Think 1940s," says Saboura. "Her look certainly suits the era."