It is rare that Zara and Mike Tindall leave their home on Princess Anne's Gatcombe Park estate in Gloucestershire for a night in the capital.
However, Thursday night was an exception to the rule as the King's niece, 43, and her rugby star husband, 45, were spotted on the red carpet ahead of a special screening of Federer: Twelve Final Days at Odeon Luxe Leicester Square.
The Princess Royal's daughter looked as elegant as ever in the 'Versailles Leaf Embellished Midi Dress' from Rebecca Vallance. The slinky black number was fitted at the waist and boasted enormous puffed sleeves which had a regal air.
The mother-of-three was last seen wearing the chic Rebecca Vallance number in Australia when she attended the Magic Millions Racing Women Achievement Awards in January.
The gold embellishments elevated Zara's look to the next level with the help of a matching textured clutch bag from Strathberry which had apt gold hardware.
The stylish royal also donned the ‘Forever Marilyn’ black pumps from Aquazurra which featured cut-outs at the ankle and subtle tassel detailing. Meghan Markle wore a nearly identical pair in 2018 when opened 'Oceania' at the Royal Academy of Arts.
The finishing touches were added to Zara's look in the form of a short black manicure, a simple watch, and glitzy gold earrings.
The former Olympian's hair was styled in a loosely waved bob and she wore a subtly glamorous makeup look featuring a glossy nude lip and shimmery eyes.
Meanwhile, her former athlete husband looked smart in a black blazer and tie to match his black shoes, and a pair of beige chinos.
Zara's LBD collection
Zara's chosen dress from Thursday night is not the only one in her repertoire. The royal looked stunning as she stepped out to support her cousin Princess Eugenie last November at The Anti Slavery Collective's Inaugural Winter Gala at Battersea Arts Centre.
Prince William's cousin wore an ankle-length fit and flare gown with a sharp collar and puffed sleeves once again.
Zara also proved her penchant for a puffed sleeve last November when she was seen alongside the famed designer herself at a VIP breakfast celebrating the relaunch of Rebecca Vallance at Harrods.
The royal looked showstopping in Rebecca's 'Eva' dress - a round-necked number with cut-outs on each side of the waistline which were adorned with pearl and diamanté beading.
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Once again, Zara rocked her Aquazurra heels but opted to sweep her sandy blonde locks away from her face in a low updo.