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Detailed side-by-side comparison of Costa Cruises and Viking Ocean Cruises cruise ships
| Specification | Costa Diadema | Viking Sky |
|---|---|---|
| Cruise Line | Costa Cruises | Viking Ocean Cruises |
| Maiden Voyage | 2012 | 2017 |
| Year Refurbished | N/A | N/A |
| Adults Only | No | No |
| Specification | Costa Diadema | Viking Sky |
|---|---|---|
| Passenger Capacity | 4,947 | 930 |
| Crew Size | 1,253 | 550 |
| Guest-to-Crew Ratio | 3.95 | 1.69 |
| Specification | Costa Diadema | Viking Sky |
|---|---|---|
| Gross Tonnage | 132,500 | 47,800 |
| Length | 1,004 ft | 745 ft |
| Width | 122 ft | 95 ft |
| Ship Size Category | Mega | Medium |
| Number of Decks | 20 | 14 |
| Specification | Costa Diadema | Viking Sky |
|---|---|---|
| Overall Cruiseable Rating | 8.0 / 10 | 10.0 / 10 |
| Roominess Score | N/A | N/A |
| Advised For | Families, entertainment | Romantic, spa and fitness |
