Rihanna Surprises in Glam Gown at Cannes Dinner Celebrating Her Jewelry Line -- See the Singer's Demure Look!

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Photo: Getty Images
Even when Rihanna tones it down, she still looks pretty amazing.
The 29-year-old singer was the guest of honor at the Chopard dinner on Thursday -- held in honor of her new collection with the iconic brand -- during the 70th annual Cannes Film Festival in France. Rihanna chose a chic, floor-length black Ralph & Russo gown for the occasion, and wore a matching sheer shawl. Elegant Chopard jewelry and bright red lipstick completed her simple, yet super glamorous, look.
Check out Rihanna's flawless appearance!
Photo: Getty Images
Rihanna announced her new jewelry collection last month.
"I'm so happy to announce that I've had the honor of designing with the legendary Caroline Scheufele, of the @chopard family, my first high end jewelry collection!!" she Instagrammed.

The "Love on the Brain" singer's understated style on Thursday was a big change from her incredible Met Gala look earlier this month, where she won the night in an audacious Comme des Garcons piece.
Watch below: