When Princess Diana arrived at the 1987 Cannes Film Festival, she seemed to float rather than walk, a vision in pale blue tulle that shimmered in the Mediterranean breeze. Flashbulbs exploded, cameras whirred, and for a moment, the world held its breath, captivated by her grace.

But beneath the glamour, Diana’s gown held a secret—one that spoke not just of fashion, but of remembrance.

She was known as the “People’s Princess,” a royal unlike any who came before. With her preference for softness over stiffness and her talent for silent storytelling through fashion, Diana transformed every public appearance into a message—sometimes subtle, often heartfelt. In the 1980s and ’90s, she became a global style icon, stepping away from rigid formality and toward something more accessible, more human. One of her favorite visual signatures? Pastels. They softened her image, made her feel closer to the people she met, and whispered elegance without shouting wealth.

But that particular night in Cannes? It was different.

She was there with Prince Charles for barely ten hours—officially, to honor Sir Alec Guinness and support British cinema. But all anyone could talk about was her dress: a strapless, powder-blue chiffon gown, designed by Catherine Walker, whose partnership with Diana would later define many of her most iconic looks. Continues…