The blushing bride, decked out in a floral-embroidered gown with a sheer long-sleeve overlay -- looked extremely happy but a little nervous as she walked down the aisle solo, a source tells ET. She had no reason to be concerned, though -- Abrams, looking sharp in a light gray John Varvatos suit, lit up as soon as he saw his bride-to-be in her wedding gown for the first time.
Everything about the wedding was traditional and intimate, from the close friends and family in attendance at Garth's Santa Ynez Valley home to all three of Jennie's daughters -- Luca Bella, 17, Lola Ray, 12, and Fiona Eve, 8 -- looking on as her beautiful, excited bridesmaids.
The most poignant part of the wedding, however, was when it came time to exchange vows. Both bride and groom stood in front of a white archway framed by peach tulle and flowers and clutched folders as they shared their own "very emotional" vows, the source said. Garth even had to dry her eyes at one point during Abrams' speech.
After Garth and Abrams were declared man and wife, all of the attendees jumped to their feet to congratulate the newly married couple. The doting duo gave the bridesmaids, who were sporting adorable floral headbands, big hugs, embracing them as they walked to an open area of the ranch to take official wedding photos.
Guests were treated to a reception full of rustic elegance, with chic, simple white shades, lawn lamps and dividers framing the yard and white linens and plates placed on dark wooden picnic tables to add to the cozy feel.
Romance stayed in the air (but how could it not?) as the couple stepped into the spotlight to dance to Elton John's "Your Song," which is about as sweet a song as one can pick.
There was plenty of fun music for all of the attendees to dance to as well, with the party going strong to lovestruck tunes like The Eagles' "Best of My Love," The Four Tops' "Ain't No Woman (Like the One I've Got)," John Legend's "P.D.A. (We Just Don't Care)" and Michael Jackson's "Rock With You."
Who were some of the fabulous attendees dancing the night away? They included Garth's BFFs, of course, like her Beverly Hills, 90210 co-star Tori Spelling. While her husband Dean McDermott and fellow 90210 castmates weren't at the ranch, Spelling still had an amazing time celebrating Garth's nuptials alongside costume designer Erik Rudy and actor Miguel Pinzon.
While he couldn't be in attendance, ET caught up with Ian Ziering at Comic-Con in San Diego on Saturday, and he shared his love and well wishes for his 90210 co-star on her special day. "Jennie is such a special person," he said. "She's so fantastic. I was hoping that she’d be able to find love again, and knowing her, I'm not surprised that it's happened."
Third time was definitely the charm for Garth, who was previously married to Twilight star Peter Facinelli -- with whom she has Luca, Lola and Fiona -- from 2001 to 2013 and Daniel Clark from 1994 to 1996. Garth and Abrams met on a blind date last fall and got engaged in April.
There are even more big celeb weddings coming up this summer and fall -- find out which ones we're most excited for in the video below.