Kate Middleton’s latest look is good as gold.
The Princess of Wales donned an all-gold ensemble as she arrived at Windsor Castle with her husband Prince William Sept. 17, where King Charles III and Queen Camilla hosted a state banquet for President Donald Trump and First Lady Melania Trump.
Crafted by British designer Phillippa Lepley, the silk couture gown featured an evening coat with gold lace detailing and hand-embroidered roses, as well as French knots and satin-stitched blooms.
To top off her outfit, Kate, 43, wore the iconic Lover’s Knot tiara, a known favorite of her late mother-in-law Princess Diana. The stunning headpiece, which features 19 arches and 28 drop-shaped pearls, is believed to have been created in 1914 for Queen Mary and was eventually passed down to Queen Elizabeth II, according to Town & Country magazine.
As for William, the 43-year-old attended the royal affair wearing a black Windsor tailcoat with red accents and gold buttons over a white shirt and white tie. The heir apparent to the British throne completed his wardrobe with a large blue sash and several miniature medals on his lapel.
In a post on their shared Instagram account, the couple—who share Prince George, 12, Princess Charlotte, 10, and Prince Louis, 7—posed for a photo in their formalwear with the caption, “Ready for The State Banquet.”
Kate previously wore the Lover’s Knot tiara in July when the royal family hosted French president Emmanuel Macron and his wife Brigitte Macron for their own state banquet, marking her first time wearing a tiara in nearly two years. She put on the sparkler to help welcome diplomats to an event at Buckingham Palace in December 2023.
Throughout her royal tenure, Kate has turned heads in other notable tiaras as well, including the Cartier halo tiara she wore for her wedding in April 2011. She also wore the rarely-seen Strathmore Rose tiara, which had not been worn publicly since the 1930s, in November 2023.
Keep scrolling to see more of Kate’s best fashion moments over the years…
Royal in Red
For a Diplomatic Corps reception at Buckingham Palace in December 2022, the Princess of Wales styled her sparkly Jenny Packham gown with several regal accessories, including Queen Elizabeth II‘s Royal Family Order badge, the sash and star of the Royal Victorian Order, diamond frame earrings, a diamond Art Deco brooch and Queen Elizabeth the Queen Mother‘s famed Lotus Flower Tiara.
Princess of Style
Shortly after succeeding the Princess of Wales title, Kate wore this stunning Jenny Packham gown with Queen Mary‘s Lover’s Knot tiara to a state dinner in 2022.
Vision in White
There’s nothing more refreshing than seeing a royal who isn’t afraid to wear an item on numerous occasions. The royal last wore this Barbara Casasola number at the 2016 for the Art Fund awards.
Elegance at Work
Kate took the army’s salute in a lovely Catherine Walker coat dress, which she paired with matching clutch and shoes.
Flaunt It
Kate showed the Americans how it is done in a white gown by Alexander McQueen, the same designer who created her iconic wedding dress.
Tea Party Ready
When in the presence of the Queen it is pretty important to wear your Sunday finest. For the occasion, the Princess of Wales sported a pink coat dress by Alexander McQueen and a fascinator by Juliette Botterill.
Boho Chic
For the Chelsea Flower Show, the Duchess of Cambridge wore a whimsical dress from British label Erdem.
Sophisticated Suits
Kate wore the matching blazer and skirt combo to The Royal Foundation’s Mental Health in Education conference.
Gorgeous Gowns
The royal stunned in a white McQueen gown for the 2019 BAFTA Awards.
Going Green
Kate turned heads in this Eponine London dress for Children’s Mental Health Week.
Cute and Casual
The royal looked fabulous in a tweed jacket and boots at Islington Community Garden.
Pretty in Plaid
Kate looked gorgeous in a Q by McQueen green and blue tartan coat dress in Dundee, Scotland.
Bold and Beautiful
The royal isn’t afraid to rock a bold shade, like this pretty magenta she wore to The Royal Opera House.
Beautiful in Blue
Kate was all smiles as she watched a flypast to celebrate the centenary of the Royal Air Force.
Elegant in Emerald
The mother of three stunned in this number for the Family Action Charity.
Royal Red
Next to Meghan Markle‘s royal blues, the Duchess of Cambridge’s monochromatic ensemble makes a major impact.
Teal Time
Kate took a stroll with Prince William in a coat dress, matching hat and black pumps.
Festive and Chic
Kate have us major holiday fashion inspo in this green and white L.K. Bennett polka dot dress paired with a khaki clutch and matching heels for a visit to Evelina London Children’s Hospital.
Cinderella Story
The princess looked like a real-life Cinderella at a diplomatic reception in this sparkly Jenny Packham gown that featured sheer cap sleeves and clusters of sequins.
Fabulous Flare
For an official visit to RAF Akrotiri, Kate rocked a business-casual look that included a forest green Smythe blazer paired with navy trousers and a white shirt.
Pleasant in Plaid
Kate hosted a holiday party in this festive plaid Emilia Wickstead skirt paired with a black Brora cardigan and slouchy black high-heel boots.
Burgundy Beauty
The royal visitsed UCL Developmental Neuroscience Lab at UCL London in a burgundy Paule Ka blazer and skirt paired with a black turtleneck, tights and heels.
Buttoned and Belted
Kate stunned in a chic blue coat dress that featured a belted waist, button detailing and a collar paired with matching navy pumps and a black clutch to open the McLaren Automotive’s new Composites Technology Centre.
Velvet Trim
Kate attended the Remembrance Day service in a dark green coat with button detailing and a velvet trim collar, cuffs and pockets, and paired it with a fuzzy headband and carried a black clutch.
Aquamarine Dream
For the Tusk Conservation Awards, Kate wore her aquamarine Jenny Packham gown (a stunning look she’s worn before) paired with diamond chandelier earrings, a matching clutch and Jimmy Choo pumps.
Nice in Navy
The Princess of Wales arrived at Imperial War Museum in a fitted blue sheath dress, nude heels and a matching nude clutch.
Royal Wedding Style
In honor of Princess Eugenie‘s wedding, Kate wore an all-fuchsia ensemble that included a stunning dress and matching fascinator from Alexander McQueen.
Chic in Check
The mother of three stunned in a burgundy accented Erdem check print dress paired with a matching clutch and heels.
Lady in Lavender
Kate looked typically elegant for a mental health summit in this beautiful purple Emilia Wickstead dress, nude heels and an Aspinal leather handbag.
Cinderella Moment
The royal’s blue taffeta Alexander McQueen gown at the state banquet had all kinds of Disney princess vibes from Queen Mary Lovers Knot tiara to Princess Diana’s Collingwood pearl earrings.
