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Costa Diadema is a Dream-class cruise ship owned by Carnival Corporation and operated by Costa Crociere. The ship was ordered in October 2012 and was delivered to Costa on 25 October 2014. At her time of delivery, Costa Diadema was the largest vessel to fly an Italian flag and Costa’s largest vessel to date; she is currently Costa Crociere’s flagship.

Queen of the Mediterranean. The name Diadema means tiara, and there’s more than enough razzle-dazzle onboard to call this Costa’s crowning glory, at least for now. For starters, there’s an art collection of more than 7,000 works, most falling under a royal motif, as in jewels, gowns, or pop princesses. As we said, there’s never a dull space. Even so, those familiar with Farcus’ previous designs will find Costa Diadema less brash and more, shall we say, regal.

The theme of the ship is showcasing the best of Italy from pizza, pasta, Prosecco, and gelato to dazzling entertainment and fashionable decor. Celebrating la dolce vita means such new features for Costa as the 1,640-foot open-air Promenade, considered to be akin to a real Italian seaside terrazzo (terrace). The 16-foot-wide promenade surrounds the ship from front to back on Deck 5. Not only can you stroll completely around the ship, but you can also stop to relax in one of six outside cabanas linked to various restaurants and bars, and even take a dip in the two whirlpool tubs extending out from the ship’s sides.

Also new and novel to Costa are splashy, innovative food and drink venues such as Tavola Teppanyaki. While knife-tossing chefs may be the standard of teppanyaki restaurants on land, spatulas make better juggling material at sea. You can sample hard-to-find Italian wines in the new wine bar, or taste a flight of Italian (and German) beers in the two-level beer garden. Fancy a night of country or rock music? Give the new Country Rock Club a spin.

Costa Diadema cruise ship deck plan shows a total of 1886 staterooms for 3772 passengers (max capacity is 4526) served by 1250 crew staff. The boat has 14 passenger decks (out of 17), 7 restaurants, 15 lounges and bars, 3 swimming pools (one with retractable glass roof), 8 jacuzzies, 18 elevators (4 panoramic). Diadema has no self-service laundromats on board.

On Diadema, there are a total of 190 original artworks and 7874  prints on display at various places throughout the ship.

Besides the ship’s staff and crew, Costa cruise passengers are also served by Peper robots – the latest cyborg technology implemented fleetwide in 2016. These humanoid robots greet and guide passengers upon embarkation. They also assist them throughout the cruise by providing information and tips on onboard dining, entertainment, enrichment program (workshops, pre-scheduled events), casino and shopping promotions, shore excursions, and tours. Pepper robots are mobile and communicate in 3 languages (English, German, Italian). They can also interpret human emotions by analyzing voice tones and facial expressions.


Costa Diadema cruise ship

Costa Diadema

Costa Diadema Dining

Costa Diadema Cabins

Costa Diadema Activity/Entertainment


Name Costa Diadema
Owner Carnival Corporation & plc
Operator Costa Crociere
Port of registry  ItalyGenoa
Route MediterraneanPersian Gulf
Ordered 2012
Builder Fincantieri
Cost US$739 million
Launched 15 November 2013[1]
Christened 7 November 2014
Completed 25 October 2014
Acquired 30 October 2014
Maiden voyage 1 November 2014
In service 8 November 2014
Status In service
General characteristics
Class and type Dream-class cruise ship
Tonnage 132,500 GT
Length 306 m (1,003 ft 11 in)
Beam 37.20 m (122 ft 1 in)
Draught 8.35 m (27 ft 5 in)
Installed power
  • 20 knots (37 km/h; 23 mph) (cruise)
  • 22.5 knots (41.7 km/h; 25.9 mph) (max)
  • 3,724 passengers (double occupancy)
  • 4,927 passengers (maximum occupancy)
Crew 1,253

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