Demi Lovato attends the Alcides & Rosaura (ARD) Foundations' "A Brazilian Night" to Benefit Memorial Sloan Kettering Cancer Center (MSK) at Cipriani 42nd Street on September 7, 2017 in New York City.
(September 06, 2017 - Source: Antonio de Moraes Barros Filho/Getty Images North America) see more angles »

Demi Lovato Dark Nail Polish

Demi Lovato attended the Brazilian Night benefit sporting black nail polish.

Demi Lovato Diamond Ring

On her left hand, Demi Lovato wore a duo of diamond rings by Chopard.
Brand: Chopard

Demi Lovato Diamond Ring

Demi Lovato also accessorized with a uniquely shaped diamond ring on her right hand.