Mouni Roy dazzles at Cannes 2026 in sheer couture gown and statement Chopard diamonds

Mouni Roy delivered a striking fashion moment at the 79th Cannes Film Festival, turning the French Riviera into her runway with a look that blended couture craftsmanship and statement jewellery.

The actor stepped out in a strapless floor-length gown from Caroline’s Couture featuring an intricate sheer lattice design. The body-hugging silhouette, detailed with geometric mesh and crystal embellishments, created the effect of a sculpted second skin while extending into a subtle train.

The standout element of her appearance, however, was her jewellery. Mouni paired the gown with an elaborate diamond set from Chopard, including a dramatic multi-layered choker adorned with pear-cut and brilliant-cut diamonds arranged in floral-inspired patterns. She completed the look with a diamond watch and statement rings that amplified the glamour.

For beauty, Mouni opted for a sleek high-fashion bun with a centre parting, ensuring the jewellery remained the focal point. Her makeup featured soft smoky eyes, elongated eyeliner, nude lips and luminous skin for a polished Riviera-inspired finish.

Captioning her Instagram post, she wrote: “En route to the Croisette,” adding another memorable fashion appearance to her Cannes journey.