Duchess of Cambridge: A vision in white

The Duchess's iconic wedding dress is her most prominent white dress, made by her favourite designer, Alexander McQueen. (Photo: Instagram @KensigntonRoyal)

The Duchess of Cambridge attended the Addiction Awareness Week Gala in a Barbara Casasola dress which is wore back in 2016. She accessorised it with Jimmy Choo shoes and Kiki McDonough earrings. (Photo: Instagram)

The Duke and Duchess of Cambridge attended the BAFTAs in 2019. Kate wore a dreamy Alexander McQueen gown and tied her hair in a neat bun. She carried a matching white cluth by the same designer and wore shoes by Jimmy Choo. The most iconic part of her ensemble was Princess Diana's diamond and pearl drop earrings. (Photo: Instagram @KensigntonRoyal)

The Duchess looked radiant in a stunning white lace dress at the Royal Ascot in 2017. She opted for McQueen yet again for this creation. The high-necked number was complemented by a matching fascinator. She wore the Queen's Bahrain pearl and diamond earrings. (Photo: Instagram)

Kate stepped out for a day engagement in this simple dress by Emilia Wickstead. The dress featured lapels and collars and a flowy skirt. She wore matching nude pumps and clutch with the ensemble. (Photo: Instagram)

The Duchess of Cambridge wore a layered white dress that was very bride-esque. The lace creation was specially made by McQueen for the State Banquet held for US President Trump. She wore her favourite Lover's Knot Tiara and the Queen Mum's sapphire and diamond earrings. She also wore the Royal Victorian Order bestowed upon her by the Queen. (Photo: Instagram @KensigntonRoyal)

This is probably the Duchess's most iconic white dresses. Her lace dress for the ceremony and the satin dress for the reception were both masterpieces by Alexander McQueen. These are still in style, even 8 years after they were first presented to the public on her wedding day. (Photo: Instagram)