In a dapper tuxedo, Nico was handsome as ever as escorted Kate Middleton’s 30-year-old sister to the society bash, who dazzled in a floor-length, embroidered sheer gown.
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A nude lining beneath the embroidered black material gave the impression that the dress was more revealing than it actually was.
A cropped black sparkling jacket finished Pippa's chic outfit, along with sparkling drop earrings and a black clutch bag.
Her brunette locks were swept off her face in an upstyle, in contrast to her sister Kate's trademark loose waves.
Pippa's stockbroker boyfriend made the perfect companion, looking as handsome as ever in a black tuxedo and bow tie as he posed for photographs beside his pretty girlfriend.
Model Poppy brightened up the winter's evening with a colourful number, opting for a billowing striped pink and orange dress that she contrasted with an eye-catching leopard print coat. The beautiful blonde wore her hair loose over her shoulders.