Kate, 37, was attending the first annual gala dinner in recognition of Addiction Awareness Week, hosted by Action on Addiction and chef Skye Gyngell.
She wore the off the shoulder dress and added a silver clutch and silver sparkly shoes, with her hair down in loose curls.
The Duchess has worn the long sleeved gown, priced at £1,580, before in 2016, when she presented the Art Fund Museum of the Year prize.
She also added a touch of sparkle to her outfit with a pair of Jimmy Choo glittering silver shoes, which cost £525.
The royal has been snapped in the glittering silver shoes before too, and was last spotted in the shimmering pumps as she attended the BAFTA awards in February of this year.
Before the dinner she will meet Action on Addiction clients who are working as apprentices in the kitchen, and will be working with Spring Restaurant’s head chef and owner Skye Gyngell to create the evening’s meal.
As a patron of Action on Addiction, since 2012, she will also deliver a speech tonight to to celebrate the work of the charity.
Action on Addiction is the only UK addictions charity that works across all the areas of research, treatment, family support and professional education.
The Duchess of Cambridge looked glam tonight in a white Barbara Casasola dress as she arrived at a charity dinner at Spring restaurant in London
Kate, 37, was attending the first annual gala dinner in recognition of Addiction Awareness Week, hosted by Action on Addiction and chef Skye Gyngell
Show off your shoulders like the Duchess of Cambridge in Barbara Casasola
Barabara Casasola off-the-shoulder mesh panel dress
Sold out! Shop the current collection
The Duchess of Cambridge wowed at tonight’s charity gala dinner in London.
She stayed true to her signature style in an elegant ivory gown by Barbara Casasola, teamed with sparkly heels by Jimmy Choo.
Kate first wore this dress back in 2016, and we’re not at all surprised to see her recycling the classic design. Characterised by an off-the-shoulder neckline, subtle mesh panelling and A-line silhouette, it couldn’t have been more fitting for the swanky event.
Sadly this dress isn’t available to buy, but you can shop the current collection at Farfetch by clicking (right). This London-based brand has also been worn by the likes of Gwyneth Paltrow and Kate Bosworth, so you’ll be in great company.
Keen to copy? Head straight to our edit of variations below. We’ve found some fantastic options from AllSaints, Gabriela Hearst and Missguided. Don’t forget to complete your look with Kate’s shoes!
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Before the dinner Kate will meet Action on Addiction clients who are working as apprentices in the kitchen, and will be working with Spring Restaurant’s head chef and owner Skye Gyngell to create the evening’s meal
The Duchess, who became patron of the charity in 2012, chatted to some of the staff who helped to create the evening menu at the event
Addiction Awareness Week, which falls this week, aims to provide a platform to discuss the many elements of addiction, to engage with people and families affected, and to raise public awareness.
As a patron of Action on Addiction she will also deliver a speech tonight to to celebrate the work of the charity.
The Duchess will give some opening remarks at the event to recognise the work done by the charity, and talk about how her time as Patron has also inspired other elements of her work.
Kate’s experience with Action on Addiction has helped lay the groundwork for her work and understanding on mental health, and is currently helping inform her work in developing a major project around support for children in their earliest years.
Experiences in these earliest moments, before the age of five, are proven to have significant impact on adult lives, including resilience and the ability to cope with adversity.
She recently spoke about this when showcasing her garden at the Chelsea Flower Show: ‘There’s an amazing fact that I learned recently that 90 per cent of our adult brains are developed before the age of five and what a child experiences in these really early years directly affects how their brain develops,’ she said.
‘That’s why I think it’s so important that all of us, whether we are parents or carers or family members, really engage in quality time with our children and babies from a really young age.’
As a patron of Action on Addiction, since 2012, Kate will also deliver a speech tonight to to celebrate the work of the charity
The Duchess of Cambridge shields from the rain as she arrives for the first annual gala dinner in recognition of Addiction Awareness Week, hosted by Action on Addiction
The Duchess of Cambridge walks slowly over the cobbles in her heels as she arrives for the first annual gala dinner in recognition of Addiction Awareness Week
Dougray Scott and wife Claire Forlani Action on Addiction Gala Dinner, Somerset House which the Duchess of Cambridge attended
Action on Addiction builds communities of recovery for individuals and families by developing the best quality and most effective residential and community-based addiction treatment services in the UK and promoting self-help, peer-to-peer support, and community cohesion.
The charity also campaigns to raise the standard of professional education across the addictions field, funds groundbreaking research into different facets of addiction, increases access to treatment for all those who need it, and strives to remove the stigma relating to addiction and associated issues.
In February 2018 the Duchess of Cambridge opened a new addiction treatment centre for the charity in Essex.
Celebrities, including Scottish actor Dougray Scott and his wife Claire Forlani were in attendance at the gala dinner at Somerset House.
Rockstar Ronnie Wood saluted the crowd as he arrived at the event hand-in-hand with his wife Sally Humphreys.
The Rolling Stone donned a metallic floral jacket for the occasion, with a pink lining that matched Sally’s pink and red floral gown.
Ronnie Wood and his wife Sally wore matching outfits as they arrived at the first annual gala dinner in recognition of Addition Awareness Week