After wowing in a bejewelled blue gown by the designer at the premiere of Behind The Candelabra on Tuesday night, Stone was caught making herself at home on Cavalli's yacht in Cannes on Thursday. (Let's hope she wasn't trying to compete with his tan).
This time, the actress was dressed in a purple halter-neck gown with gold sandals but unfortunately, Stone's underboob situation continued to cause her some problems.
Still, living the life in Cannes with a designer wardrobe at your disposal... Who'd say no?
More of the Cannes high-life below: