Emerald Princess is a Crown-class cruise ship for Princess Cruises that entered service in April 2007. Her sister ships include Ruby Princess and Crown Princess.

The Grand class is a class of cruise ships. Ships in the class are operated by the cruise lines Princess Cruises, P&O Cruises and P&O Cruises Australia. The class consists of several series (subclasses) of sister ships, most of which were built by Fincantieri in Monfalcone and Trieste, northern Italy. The first vessel of the original Grand class, Grand Princess, entered service in 1998.