Fares per person start at €327 on Emerald Princess and €391 on Sun Princess. Sun Princess is the cheapest per night, at €48 per person. Sun 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. Sun Princess is newer, built in 2024 against 2007, though Emerald Princess was refurbished in 2025.