Nicky Hilton weds James Rothschild in lavish ceremony

Nicky Hilton. Photo / Getty Images

Fashion designer and socialite Nicky Hilton is a married woman after exchanging vows with British banking heir James Rothschild at London's Kensington Palace.

The blushing bride, 31, stunned in her $US80,000 (NZ$119,000) Valentino couture lace gown, which featured long sleeves and a high neck. She finished off the look with a cathedral length lace veil, while her older sister Paris donned a floor-length blue gown as maid of honour.

The ceremony took place in the Orangery at Kensington Palace, the royal residence of Prince William and his wife Catherine, Duchess of Cambridge.

Guests included supermodel Naomi Campbell, actress Kate Beckinsale and former US first daughter Chelsea Clinton and her husband Marc Mezvinsky, reports GossipCop.com.

Hilton family friend Lionel Ritchie is said to be performing at the newlyweds' reception.

Rothschild, 30, proposed to Hilton last August after three years of dating.

The marriage is the groom's first and Hilton's second - she was previously wed to Todd Meister, but had the Las Vegas union annulled just three months later. Though Paris believes her sister and James Rothschild will be "together forever."

The 34-year-old DJ says her younger sister and her new husband "make the perfect couple."

Asked about their relationship, the blonde beauty said: "I know that they're going to be together forever and make the perfect couple. I am so happy for my sister because he's an amazing man and he loves her so much. He's loyal and loving."

Paris has also formed a close bond with her new brother-in-law's family.

Nicky Hilton wore a Valentino couture lace gown on her wedding day. Photo / Getty Images

Speaking shortly before the nuptials, she told New You magazine: "I have already met his mother and his sister and they're so sweet.

"[His sister] Kate actually just emailed me last night and sent me this YouTube video of this 3D hologram that a DJ is using in Asia and she's like, 'You need to do this for your live shows.' She's also going to connect me to someone to help make a hologram for my shows. She always has great ideas. She is an awesome sister-in-law."

Paris, who recently started dating entrepreneur Thomas Gross, also opened up about what she is looking for in a husband.

She said: "My perfect husband would be someone who is my best friend and who I can trust with anything. Someone I know would never lie to me, or hurt me or cheat on me. And someone who would always be there for me no matter what, who makes me laugh, is sweet, smart, and romantic and has a good heart."

- WENN, Bang! Showbiz