The 'Costa Diadema', the future flagship of Costa Cruises & of the Italian-flagged passenger fleet, entered the water for the first time as the building dry-dock was flooded, and a traditional launching ceremony was held at the Fincantieri shipyard in Marghera. The Costa Diadema’s technical launch ceremony was carried out according to seafaring tradition. It started with the welding of a coin at the base of what was once the mainmast, a custom considered to bring good luck. Then, the shipyard director Antonio Quintano invited the godmother, Ms.