How Chopard’s Caroline Scheufele Makes the Cannes Film Festival Shine

There are trays of expensive rings and necklaces in front of her, a cadre of well-dressed waiters offering her Champagne, and a long list of celebrities vying for her attention. But Caroline Scheufele, co-president and artistic director of the Swiss jeweler and watchmaker Chopard, is doting on her dog.

“He’s called Byron. Actually, Lord Byron,” says Schefuele of her Cavalier King Charles Spaniel. She’s seated on a couch on the rooftop terrace of the Hotel Martinez, just…