The couple exchanged their vows in the showbiz wedding of the year at the historic Belvedere Fort in Florence, Italy in front of 200 guests.
Surprisingly, Kim's younger brother Rob flew back to LA before the ceremony, despite being in Florence this morning. Her step-brother Brody Jenner also snubbed the ceremony after his girlfriend wasn't invited.
His father, Kim's step-father, Bruce walked her up the aisle while 'momager' Kris Jenner carreied baby North West.
A source told PEOPLE.com that Rich Wilkerson Jr., a pastor from North Miami, performed the ceremony.
It was organised by long-time Kardashian family friend and celebrity event planner Sharon Sacks, who also planned Kim's second wedding to Kris Humphries in 2011.
Kanye nervously sipped a bottle of water as he waited for the ceremony to begin.
"It was funny how nervous he was. He clearly knew the gravity of what he was about to do. This morning he was all smiles, but as it got closer, you could see that the nerves were kicking in. It's common for most grooms. I've seen it all before,'' the insider said.
Jay-Z, who was initially rumoured to be West's best man didn't attend the wedding of the year, nor did his wife Beyonce.
And with one of fashion's most dedicated couples exchanging vows, they both stunned in Givenchy couture, with Kim opting for an intricate lace veil and loose curls in stark contract to her Old Hollywood style at her wedding to Kris Humphries.
A photo taken from afar has been making its way through Twitter, showing the couple facing their guests standing by a wall of white flowers, which Us Weekly reported earlier in the day were “sprayed with water” to keep looking fresh.
Guests at the A-list ceremony included Kim's siblings Kourtney and Khloé, model Chrissy Teigen and her husband John Legend and designer Rachel Roy. It is also thought Jay Z was best man.
Mum Kris Jenner also spoke of her excitement of welcoming Kanye into the family - just one hour after her daughter wed.
Jenner told E! News that she is"beyond bursting with happiness for Kim, Kanye and baby North."
"Such a magical, romantic wedding! I feel blessed to have my new son and his family as part of ours."
Questions on whether music power couple Beyoncé and Jay-Z attended the ceremony were raised after Beyoncé posted a picture of her new hairstyle on Instagram.
Looking casual without make-up, the starlet showed off her new long braids.
Media outlets and onlookers have crowded outside the lavish Italian villa.
A wall outside the venue was covered in beautiful white flowers.