Fares per person start at €283 on Star Princess and €327 on Emerald Princess. Emerald Princess is the cheapest per night, at €54 per person. Star Princess is the bigger ship, carrying 4,300 guests to 3,080. Emerald Princess has the fewest guests per crew member, at 2.6 to 1. Star Princess is newer, built in 2025 against 2007, though Emerald Princess was refurbished in 2025.