Duchess Kate recycles a striking Jenny Packham gown for the Tusk Conservation Awards

It's been a glamorous month for the Duchess of Cambridge since her official return from maternity leave with Prince Louis, and the Tusk Conservation Awards on Thursday (Nov. 8) were no exception. The 36-year-old wore one of her favourite teal gowns as she joined her dapper tuxedo-clad husband, Prince William, for the glitzy event at Whitehall's Banqueting House. Kate went shopping in her closet for the lacy look, which come from one of her favourite designers, Jenny Packham.

Duchess Kate recycled a stunning teal dress by Jenny Packham. Photo: © Getty Images

The striking gown features a pleated, figure-flattering design with lace peeking out from its plunging neckline and draping the shoulder. A jewelled belt nips the waist while the back is composed of sheer lace with a string of buttons. The duchess paired the gown with chandelier earrings, a poppy brooch and a matching satin clutch, wearing her brown locks in soft waves and a beautiful taupe smokey eye. Kate first wore the stunning design in 2012 when she attended an Olympic dinner with Team Great Britain.

The back of the gown when Kate wore it with a chignon in 2012. Photo: © Getty Images

The Tusk awards honour the efforts of individuals across Africa working in environmental education and to protect wildlife species and their homes, and one of the evening's awards is named after Prince William. Though the Duke of Cambridge has been on hand for the past few years as a longtime patron of Tusk, his wife hasn't attended since 2013, less than two months after giving birth to Prince George. She stunned in a glittering gold custom gown, also by Jenny Packham and featuring a price tag surpassing $8,000, finishing the look with her brown locks in a voluminous blowout, Jimmy Choo's Vamp sandals and a diamond bracelet.

The duchess dazzled just two months after welcoming Prince George in 2013. Photo: © Getty Images

Two weeks ago, William and Kate stepped out in their finest at the Queen's lavish state banquet for King Willem-Alexander and Queen Maxima of the Netherlands. The duchess debuted a new, ice-blue gown by Alexander McQueen that featured a gathered bodice, off-the-shoulder neckline and mermaid silhouette.

Duchess Kate wore a new Alexander McQueen gown to the Queen's recent state banquet. Photo: © Getty Images

But the piece de resistance was definitely Princess Diana's favourite tiara, the Cambridge Lover's Knot, which the stylish royal paired with her late mother-in-law's Collingwood Pearl earrings and a necklace steeped in history - the heirloom diamond-and-pearl necklace that Queen Alexandra received as a wedding gift. Kate also wore her Royal Family Order for the second time, a gift she was given by the Queen last year to recognize her royal service.