How our Bliss Filters work
Detailed side-by-side comparison of Celebrity Cruises and Costa Cruises cruise ships
| Specification | Celebrity Summit | Costa Diadema |
|---|---|---|
| Cruise Line | Celebrity Cruises | Costa Cruises |
| Maiden Voyage | 2001 | 2012 |
| Year Refurbished | 2012 | N/A |
| Adults Only | No | No |
| Specification | Celebrity Summit | Costa Diadema |
|---|---|---|
| Passenger Capacity | 2,158 | 4,947 |
| Crew Size | 999 | 1,253 |
| Guest-to-Crew Ratio | 2.16 | 3.95 |
| Specification | Celebrity Summit | Costa Diadema |
|---|---|---|
| Gross Tonnage | 91,000 | 132,500 |
| Length | 965 ft | 1,004 ft |
| Width | 106 ft | 122 ft |
| Ship Size Category | Large | Mega |
| Number of Decks | 11 | 20 |
| Specification | Celebrity Summit | Costa Diadema |
|---|---|---|
| Overall Cruiseable Rating | 7.0 / 10 | 8.0 / 10 |
| Roominess Score | 35.8 | N/A |
| Advised For | Staterooms, spa and fitness, dining | Families, entertainment |
