She unveiled her collaboration with the Swiss jewellery brand on Thursday night.
And Rihanna ensured she was the belle of the ball as she hosted the Chopard Party in Cannes on Friday.
The 29-year-old flashed her toned pins in the Victorian-inspired gown, which featured a very daring split at the front.
Rihanna Makes a Major Style Statement in an Ivory Bridal Dress.
With a pair of large knickers protecting her modesty, the singer added a modern flare to the gown by leaving the satin skirt unbuttoned at the front.
Rihanna pulled together the look with statement teal and gold jewels, perfectly complementing her pale blue gown.
Accessories: Rihanna pulled together the look with statement teal and gold jewels, perfectly complementing her pale blue gown
Wearing her raven tresses off her face, she displayed a flawless make-up look, accentuating her lips with a berry lipstick.
Rihanna had earlier swept the red carpet in a bridal-inspired gown as she attended the Okja premiere, adding a modern touch with a pair of trendy sunglasses.
The gown, also by Dior, cut into a simple but stylish strapless bodice, clung to her svelte frame before gently cascading out into a full puffy skirt.
