Prince William & Duchess Kate: Diamond Jubilee River Pageant!

Catherine, Duchess of Cambridge is stunning in red at Queen Elizabeth‘s Diamond Jubilee River Pageant Flotilla at Chelsea Pier on Sunday (June 3) in London, England.

The 30-year-old royal (in Alexander McQueen) was joined by her husband Prince William to celebrate the Queen’s Diamond Jubilee, which honors the 60th anniversary of her ascension to the throne.

Also in attendance at the celebration were Prince Charles and his wife Camilla, Duchess of Cornwall.

At the river pageant, over one thousand boats set sail on the River Thames to celebrate the Queen.

10+ pictures inside of Prince William and Duchess Kate at the Diamond Jubilee River Pageant event…