B1B2B3B4BABA1BA2BCBPBVBalconyCIInsideE1E2ECEPETET1EVOceanviewGSSuiteI1I2I3I4ICININ1IN2IPIVInsideMSSuiteSSuite OCG Class Mainstream Costa Diadema Year Built2014Year Last Refurbished-Capacity4,947 passengersTonnage132,500