How our Bliss Filters work
Detailed side-by-side comparison of Costa Cruises and Princess Cruises cruise ships
| Specification | Costa Diadema | Regal Princess |
|---|---|---|
| Cruise Line | Costa Cruises | Princess Cruises |
| Maiden Voyage | 2012 | 2013 |
| Year Refurbished | N/A | 2017 |
| Adults Only | No | No |
| Specification | Costa Diadema | Regal Princess |
|---|---|---|
| Passenger Capacity | 4,947 | 3,560 |
| Crew Size | 1,253 | 1,346 |
| Guest-to-Crew Ratio | 3.95 | 2.64 |
| Specification | Costa Diadema | Regal Princess |
|---|---|---|
| Gross Tonnage | 132,500 | 142,188 |
| Length | 1,004 ft | 1,082 ft |
| Width | 122 ft | 126 ft |
| Ship Size Category | Mega | Large |
| Number of Decks | 20 | 19 |
| Specification | Costa Diadema | Regal Princess |
|---|---|---|
| Overall Cruiseable Rating | 8.0 / 10 | 9.0 / 10 |
| Roominess Score | N/A | 39.0 |
| Advised For | Families, entertainment | Cultural, staterooms, romantic, entertainment, spa and fitness |
