Mouni Roy steals the spotlight at Cannes 2026 in extravagant Chopard jewels

The French Riviera witnessed a masterclass in high fashion as Mouni Roy stepped onto the Croisette for the 79th Cannes Film Festival. In the pictures she posted to Instagram on May 20, the actor turned the streets of Cannes into her personal runway, debuting a look that seamlessly blended architectural couture with some of the world’s most exquisite high jewellery.

The piece de resistance of Mouni’s Cannes look was undoubtedly the extravagant diamond necklace by Chopard. Mouni was draped in a statement necklace: a heavy, multi-layered choker featuring an array of pear-cut and brilliant-cut diamonds. The design mimicked floral motifs, resting against her collarbone to accentuate the gown’s strapless neckline. Mouni complemented the necklace with a matching diamond watch and statement rings that shimmered as she blew kisses in a video she posted. The sheer volume of the diamonds, combined with the sheer effect of the dress, created a look of pure, unadulterated luxury

Mouni’s ensemble was a creation from Caroline’s Couture. The strapless, floor-length gown featured an intricate, sheer latticework design that appeared almost like a second skin of crystalline structure. It boasted a bodycon silhouette that flared slightly into a delicate train. The sheer effect was achieved through a complex geometric mesh, embellished with thousands of micro-crystals that caught the sun with every movement. The gown provided a neutral yet opulent canvas for Mouni’s choice of accessories.