The Most Expensive Red Carpet Dresses of All Time

At the 1997 Cannes Film Festival, Princess Diana enchanted the world in a powder-blue chiffon gown by Catherine Walker. The strapless design, accented with a matching scarf, moved like water as she walked — a masterclass in elegance and restraint. Its ethereal quality became one of Diana’s most photographed and beloved looks.

This appearance came during a transformative period in Diana’s life, symbolizing independence and renewed confidence. The gown’s fluid lines and soft color reflected her approachable yet regal style. Decades later, the look remains an enduring representation of Diana’s effortless ability to blend grace, warmth, and modern femininity.