The Duchess of Cambridge paired the beautiful gown, which was designed by British designer Preen, with Queen Elizabeth’s diamond maple leaf broach, red heels, and a matching clutch purse.
At the reception, which was held in British Columbia’s Government House, Prince William added a fourth ring to the Black Rod staff, which symbolizes the First Nations in the province.
Earlier in the day, the royals trekked through the rain for a visit to the Great Bear Rainforest in Bella Bella, Canada. They were welcomed with a series of performances by local children.
Middleton, who has been donning mostly royal blue ensembles, also rocked a pair of brown rain boots, carrying a clear umbrella as it poured down throughout the day.
The Duke and Duchess' two adorable children – Prince George and Princess Charlotte – have accompanied them on their tour, though they have not attended any public events yet.
For more on the royals’ visit to Canada, watch the video below!