The former government advisor and her partner David Sharaz appeared a tad somber as they made their way inside the venue.
Opting for an ethereal look, Brittany chose a strapless skater dress with floral lace throughout.
Over the top, she wore a sheer shawl that featured the same flower pattern embroidered along the edges.
Brittany opted for a clean makeup look with a touch of blush and a plum lipstick, while wearing her hair pulled off her face.
She completed the ensemble with a pair of shiny, nude beige heels and carried a baby pink purse.
David kept things classic in a navy blue suit worn with brown dress shoes and a grey tie.
Mingling with guests outside the venue, Brittany enjoyed a glass of bubbly and chatted to other attendees.
She appeared to relax as the night went on but had skipped the red carpet, opting not to be photographed by waiting cameras.
Higgins’ appearance at the awards gala comes as she prepares to testify at the defamation trial of Lisa Wilkinson and Network Ten.
Wilkinson and Ten were sued by formal political staffer Bruce Lehrmann over an interview Wilkinson conducted with Higgins for The Project, in which Higgins accused Lehrmann of raping her at Parliament House in 2019.
Lehrmann has always denied the allegations. His criminal trial collapsed due to juror misconduct last October and a retrial was abandoned due to concerns over Higgins’ mental health.
Also turning heads at the event was Jestinta Franklin who was resplendent in a slinky cream silk gown.
The footy WAG’s dressed was ruched at the waist and reached ankle length, as well as having exaggerated sleeves.
For added interest, the stunning gown had bunching at the back in the form of a gathered sash.
She added a pair of simple black heels to the high fashion look and kept her accessories minimal, opting for a ring and dainty earrings.
Jesinta wore her brunette locks slick and off her face, while choosing a peachy makeup look with a pink lipstick.
Pip Edwards was chic in black, opting for an abstract, loose top over wide legged trousers for a truly high fashion look.
The designer carried a red fabric purse and chose a glamorous makeup look with a glossy pink lip, while wearing her blonde bob in a loose do.
Anna Heinrich also kept things dark, wearing a fitted black maxi dress that showed off her growing baby bump.
The reality star was absolutely glowing, adding a pair of metallic heels and a stack of gold accessories that complimented the gold elements on the bust of her dress.
Also giving good bump was Georgia Fowler, who flaunted her growing bump in a black maxi dress that clung close to her figure as she showed off her belly.
The model went for a bold plum lip and wore her brunettes locks in finger waves, adding a metallic cuff that matched her heels.
Moana Hope and her girlfriend Maria Thattil made it a date night, giggling on the red carpet together.
The AFLW player turned Australian Survivor star and the former Miss Universe Australia both chose black outfits with Moana chic in a suit.
Maria meanwhile looked glam in a strapless satin gown with cutouts that showed off hints of skin.
Former Biggest Loser trainer Michelle Bridges showed off her fit figure in a skin tight mini dress in black with a peekaboo cutout and added patent heels.
Actress Chloe Hayden brought some colour to the event in a red mini dress with bold pink and red ruffles making for a statement fashion moment.
Kylie Gillies was chic in a deep green satin gown with a sheer lace panel through the hem paired with hot pink heels and statement earrings.
Jessica Rowe made an entrance in an eye-catching sequinned gown in tones of yellow, blue and pink.
The artistic dress also featured pastel ruffles and the sleeves and feathered accents, as well as sheer ruffles at the back.
TikTok star Millie Ford was bright in a blue column dress with sequin details at the bust for added interest paired with simple cream heels.