The heist in Dubai is just the latest in a string of elaborate smash-and-grab robberies of high-end jewelry stores across the globe. In glamorous locations like Monaco, Paris, London and Tokyo, the Pink Panthers’ flashy, cinematic style involves wigs and costumes, speedboats and motorcycles, blowtorches and grenades. But when the loot is worth millions — and instantly recognizable — selling what you’ve stolen is a crucial skill all its own.