Regent Cruises typically charge $3000 to $4500 per person for 7-night. It depends on cabin type, and how much bigger the cruise is. However, suites and more luxurious accommodations can easily cost $10,000 to $20,000 or more per person. Website - https://www.cruisesfares.com/blogs/how-much-does-it-cost-to-go-on-a-regent-cruise