Amanda Seyfried Dazzles in Richard Quinn Diamond Tulle Gown at London Film Festival

At the 2025 London Film Festival, Amanda Seyfried delivered a true couture fantasy moment, gliding down the red carpet in a diamond-embellished tulle ballgown by Richard Quinn. Known for her ethereal beauty and timeless red carpet style, Seyfried’s latest appearance was a breathtaking display of Old Hollywood glamour reimagined through a modern, couture lens.

The gown — a custom creation from Richard Quinn’s Fall 2025 collection — featured layers of soft silver-gray tulle, delicately hand-embroidered with crystal and diamond-like embellishments that shimmered under the flashlights. The structured bodice, sculpted to perfection, gave way to a voluminous skirt that moved with dreamlike fluidity, creating an otherworldly aura around the actress.

Styled by Elizabeth Stewart, Seyfried paired the gown with Cartier high jewelry, including a diamond collar necklace and statement drop earrings that amplified the gown’s celestial shimmer. Her platinum blonde hair, softly swept into a romantic updo, framed her glowing complexion and subtle makeup — a rose-toned palette highlighting her natural grace.

Adding to the fairytale moment were silver satin heels and a delicate crystal clutch, completing the look with sophisticated restraint. Onlookers and fashion critics alike praised Seyfried for mastering the delicate balance between drama and elegance — a signature she’s refined through years of red carpet excellence.

As she posed for photographers, the “Mamma Mia!” star embodied the spirit of cinematic glamour: poised, radiant, and effortlessly timeless.