Kim Kardashian's husband, the new 'Kate Middleton'

Kim Kardashian's new husband has been given the nickname 'Kate Middleton'.

The 30-year-old beauty tied the knot with basketball star Kris Humphries in a lavish ceremony on Saturday.

Humphries' friends have jokingly likened his marriage to that of Kate's - who wed Britain's Prince William in April. They claim the Kardashians are America's answer to the British royal family.

"Humphries' pals, sources say, settled on the moniker in honour of Britain's new Duchess of Cambridge to razz him for getting married into royalty," reports the New York Post.

Kardashian and Humphries have flown to Europe for their honeymoon.

The newlyweds touched down in Naples, Italy, on Tuesday. Humphries was seen helping with the luggage, while Kardashian waited for their car to arrive.

It is believed the pair will visit a few different cities in Europe during their short vacation.

The couple looked relaxed and happy as they walked through Los Angeles International airport earlier this week and were glowing from their weekend nuptials. Kardashian proudly showed off her impressive diamond encrusted wedding band which complimented her huge diamond engagement ring.

The reality TV star wore a series of custom-made Vera Wang gowns for her big day. She was thrilled with the dresses and took to her Twitter account on Tuesday to pay tribute to the designer.

"Seriously @VeraWangGang thanks for making all of my dreams come true! U are a true fashion icon! I love u sooo much (sic)!!!!" Kardashian wrote.

Wang replied, "You rocked it."

Once Kardashian and Humphries return from honeymoon they will start their married life in New York. Niche Media founder Jason Binn and party planner Colin Cowie are set to throw them a second wedding reception in the city on August 31.

- AAP