The Duchess of Cambridge looked beautiful as ever on Sunday evening as she arrived at the Earthshot Prize Awards with her husband Prince William.
MORE: Kate Middleton's secret hair and beauty makeover revealed - have you noticed?
Wearing lilac, she chose a beautiful Alexander McQueen Grecian-style gown for the green carpet - which is a dress from her wardrobe dating back to 2011, when she wore it to a BAFTA event in Los Angeles. She appeared to have added a different sparkling belt to the look, however.
WATCH: The Duke and Duchess of Cambridge arrive for the 2021 Earthshot prize
In fact, Kate rewore an existing dress for the environmentally-focused event as per the awards' dress code, which asked attendees to "consider the environment when choosing their outfit".
MORE: Kate Middleton loves these ultra-flattering trousers for staying chic and comfortable
Then and now! Kate chose an Alexander McQueen dress dating back to 2011
She finished her look by wearing her hair in a beautiful side-swept hairstyle, adding glowing makeup and sparkling jewelled earrings. Prince William also looked sharp in a green velvet jacket and polo neck.
SHOP: 9 Autumn fashion hits we bet Kate Middleton would love
Kate wore her Kiki McDonagh morganite and diamond earrings, which are among some of her favourite pieces - and are particularly special since she wore them to sister Pippa Middleton's wedding in 2017. The beautiful jewels were made as a 'special edition' design for the Duchess.
SHOP SIMILAR: Roxanne Assouline pink crystal earrings, £90 / $90, Net-a-Porter
SHOP NOW
SHOP SIMILAR: Morganite earrings, £48 / $52.50, Rebeka Jewellery at Etsy
SHOP NOW
William and Kate joined a number of high-profile guests on the night, which included performances from Coldplay, Ed Sheeran, Yemi Alade, KSI and Shawn Mendes.
A line-up of presenters including Emma Thompson, Emma Watson, David Oyelowo and Mo Salah handed out the awards, while the event was hosted by Clara Amfo and Dermot O'Leary.
Kate's hair and makeup looked stunning
Sir David Attenborough also spoke about the importance of the Earthshot Prize and his optimism in tackling environmental challenges.
Launched by Prince William and The Royal Foundation in October 2020, The Earthshot Prize has been inspired by President John F. Kennedy's 'Moonshot' programme in the 1960s, which united millions of people around the goal of reaching the moon.
The Earthshot Prize aims to encourage change and inspire collective action in order to problem solve and ultimately repair our planet over the next ten years.
HELLO!'s selection is editorial and independently chosen – we only feature items our editors love and approve of. HELLO! may collect a share of sales or other compensation from the links on this page. To find out more visit our FAQ page.