The publishing heiress of Hearst Magazines opted for the non-traditional route, in keeping with the couple's style, and pulled off the glittering, long-sleeved and sheer tulle gown with elegance.
Chris, who looked dapper in a Prada tuxedo, shared a sweet photo of the newlyweds on Instagram, revealing that their day was filled with references to their shared love of science fiction.
Lydia Hearst and Chris Hardwick said "I do" on Saturday
"We had Jawas, astromech droids, zombies and a TARDIS cake," the Talking Dead star wrote. "Also an incredible 1st dance performance by Clay Walker."
He added: "We were also surrounded by the most wonderful collection of good humans and it was an honour to share this day with them."
The couple's love for science fiction was incorporated into the big day
The couple's florist even drew inspiration from their favourite sci-fi and comic book series, incorporating red roses, Tardis blue hydrangea and Vanda orchids into the big day. Their celebrity wedding planner Mindy Weiss also had water bottles designed with their initials in the shape of a Tardis.
People reports that Lydia, 31, and Chris, 44, married on Saturday in front of around 450 guests in Pasadena, California. Guests sat down for a four-course meal that included Thai spiced prawns, arugula salad, Chilean sea bass and beef fillet, topped off with the wedding cake.
They had around 450 guests at the Pasadena, California wedding
Last week Lydia couldn't contain her excitement as she shared a black-and-white photo of her wedding dress from the back. She wrote to her future husband: "I am truly blessed to have you in my life @hardwick. I love you, and I will never stop loving you. I cannot wait to marry you in one week."
It comes after she posted a similar photo of Chris at his tuxedo fitting, standing with his back to the camera. "You are the best thing that has happened to this world, in my eyes. You are truly one of a kind @Hardwick. In exactly one month from now, I will be walking down the aisle, and we will be husband and wife," she wrote.
Lydia shared a preview of her gown a week before the nuptials
"You are a constant source of inspiration and give me reason to strive for more of everything. With you, my heart has finally found a home, and my heart is forever yours. I just love EVERYTHING about you, and cannot wait to spend the rest of my life with you!!!"
The couple are now on honeymoon in Tokyo, Japan.