The Princess of Wales looked radiant in a red and white midi dress following her last-minute decision to join her father-in-law, King Charles, at a reception at St James’s Palace on Tuesday evening. Just hours after Kensington Palace had announced her plans to celebrate the 125th anniversary of Cancer Research UK, Kate stepped into the Throne Room of the palace in a Rodarte dress that seemed to send a poignant message. Showing her love and support for others who had been diagnosed with cancer, she wore a silk twill dress covered in dainty white hearts and featuring a belted waist and a contrasting collar. Cherry-hued heels and a matching Miu Miu clutch completed her outfit, while even the ruby necklace and matching drop earrings tied in with the colour scheme. WATCH: King Charles chats with Davina McCall at Cancer Research UK reception Intentional dressing With 15 years of experience honing her sartorial skills as part of the royal family, Kate ensures every outfit is carefully chosen for each occasion. When she travels, for example, she …