A pair of Christian Dior Taffetas 3 sunglasses with oversized oval frames in translucent purple, subtly ridged detailing around the rims and temples, gradient lenses, and silver-tone Dior logos at the sides. The color had particular appeal for Joanna, who was born in February—the month whose birthstone is purple amethyst. “I thought, I’m born in February, so a touch of purple was a great sign that I should have this color of glasses,” she says.

Christian Dior founded his Parisian house in 1946, unveiling his first collection the following year and introducing the revolutionary silhouette that became known as the New Look. Since Dior’s death in 1957, the house has been shaped by a remarkable succession of designers, including Yves Saint Laurent, Marc Bohan, Gianfranco Ferré, John Galliano, Raf Simons, and Maria Grazia Chiuri. In 2025, Jonathan Anderson was appointed creative director of Dior, becoming the first designer since Christian Dior himself to oversee the house’s womenswear, menswear, and haute couture collections.