At last night's Earthshot Awards, environmentalism and sustainability were the order of the night, so it's no wonder that Kate Middleton chose to repurpose one of her many stunning looks.
And for the glamorous event, she plucked an iconic gown from her wardrobe, making sure to dazzle alongside the many famous faces in attendance.
The Earthshot Awards are a new and pioneering programme spearheaded by Prince William and Kate, and will support green projects from across the globe by awarding £1 million to successful applicants from a range of fields.
With a glitzy ceremony held at Alexandra Palace, complete with a red carpet, the hosts for the night were Clara Amfo and Dermot O'Leary and guests included Emma Thompson, Emma Watson and Mo Salah, who presented one of the awards each.
A seasoned pro at dressing for star-studded events, Kate dressed to impress, rewearing one of her most recognisable gowns. The last to arrive, the Duchess stepped out in her lavender Alexander McQueen gown, which she first wore in 2011.
The breathtaking Grecian-inspired gown features a scooped neckline, delicate pleats down the dress, a cinched waist, capped sleeves and a long, flowing skirt that trailed behind her. She paired this with an intricate antique-style beaded belt that added even more glamour to the look.
She accessorised with her Kiki McDonough morganite earrings, stunning drop earrings featuring a pink-hued stone, and her Platinum Lamé Cabrina Pumps by Oscar de la Renta, a striking pair of silver embellished stiletto heels.
Her hair was styled into full and voluminous curls that fell over her shoulder, while her makeup was kept fresh and rosy, with a pink lipstick and subtly smokey eye.
Almost as eye-catching as Kate's look, however, was William's as he stepped out in an unexpectedly fashion-forward look. In place of his traditional tuxedo, William wore an emerald green velvet blazer, paired with a sleek black turtleneck and black trousers.
