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Costa Diadema

Costa Diadema

Costa Cruises line guide Search cruises on Costa Cruises
Longest voyage — 24 nights visiting 14 ports on Costa Diadema.

By the numbers

132,500 GT

Tonnage

4,947

Guests

2013

Built

14

Decks

1,886

Cabins

1,003ft

Length · 306 m

$328 pp

Fares from

$1,359 pp

Median fare

More specifications

1,253

Crew

5 star

Rating

About Costa Diadema

Costa Diadema, launched in 2014, is built for relaxation and fun with lots of on-board activities, scintillating bars, gourmet restaurants and the spa area. Among the special features not to be missed: an entire deck dedicated to children with castle and pirate galleon and the terrace on deck 5 for strolling and enjoying an aperitif at sunset: a real treat for holidaying in perfect Italian style. The cabins aboard our Flagship are elegant, well-appointed and spacious for up to five guests. At any time of the day or night you'll be spoilt for choice on what to do: sports, games, a large three-story theatre that welcomes international artists, and you too can take to the stage with Tu sì que Vales... and then the Aperol Spritz Bar for a cocktail before dancing the night away at the disco, a games room for returning to your childhood and a real German pub. We look forward to welcoming you on board. Now take a look at the current position of Costa Diadema.

Where Costa Diadema sails

Brazil (24) destination guide Search Brazil cruises on Costa Diadema South America (23) destination guide Search South America cruises on Costa Diadema Western Mediterranean (15) destination guide Search Western Mediterranean cruises on Costa Diadema Mediterranean (11) destination guide Search Mediterranean cruises on Costa Diadema Europe (10) destination guide Search Europe cruises on Costa Diadema Canaries (6) destination guide Search Canaries cruises on Costa Diadema Baltic (4) destination guide Search Baltic cruises on Costa Diadema Scandinavia (3) destination guide Search Scandinavia cruises on Costa Diadema North Africa (2) destination guide Search North Africa cruises on Costa Diadema Northern Europe (2) destination guide Search Northern Europe cruises on Costa Diadema

Ports Costa Diadema visits

Santos, Brazil (47) port guide Search cruises on Costa Diadema visiting Santos, Brazil Barcelona (46) port guide Search cruises on Costa Diadema visiting Barcelona Itajai (39) port guide Search cruises on Costa Diadema visiting Itajai Savona (37) port guide Search cruises on Costa Diadema visiting Savona Malaga (35) port guide Search cruises on Costa Diadema visiting Malaga Marseille, France (31) port guide Search cruises on Costa Diadema visiting Marseille, France Cadiz (28) port guide Search cruises on Costa Diadema visiting Cadiz Lisbon (26) port guide Search cruises on Costa Diadema visiting Lisbon Buenos Aires (20) port guide Search cruises on Costa Diadema visiting Buenos Aires Maceio (20) port guide Search cruises on Costa Diadema visiting Maceio Montevideo (20) port guide Search cruises on Costa Diadema visiting Montevideo Salvador (20) port guide Search cruises on Costa Diadema visiting Salvador Tenerife (20) port guide Search cruises on Costa Diadema visiting Tenerife Las Palmas,Gran Canaria (19) port guide Search cruises on Costa Diadema visiting Las Palmas,Gran Canaria Rio de Janeiro (19) port guide Search cruises on Costa Diadema visiting Rio de Janeiro Sao Vicente (19) port guide Search cruises on Costa Diadema visiting Sao Vicente
Show 17 more ports
Copenhagen, Denmark (13) port guide Search cruises on Costa Diadema visiting Copenhagen, Denmark Gibraltar (11) port guide Search cruises on Costa Diadema visiting Gibraltar Cartagena, Spain (10) port guide Search cruises on Costa Diadema visiting Cartagena, Spain Kiel, Germany (10) port guide Search cruises on Costa Diadema visiting Kiel, Germany Kristiansand, Norway (7) port guide Search cruises on Costa Diadema visiting Kristiansand, Norway Le Havre (7) port guide Search cruises on Costa Diadema visiting Le Havre Alicante (6) port guide Search cruises on Costa Diadema visiting Alicante Geiranger (Norway) (6) port guide Search cruises on Costa Diadema visiting Geiranger (Norway) Hellesylt (6) port guide Search cruises on Costa Diadema visiting Hellesylt Ilhabela (6) port guide Search cruises on Costa Diadema visiting Ilhabela Palma de Mallorca (6) port guide Search cruises on Costa Diadema visiting Palma de Mallorca Stavanger, Norway (6) port guide Search cruises on Costa Diadema visiting Stavanger, Norway Vigo (6) port guide Search cruises on Costa Diadema visiting Vigo Casablanca (5) port guide Search cruises on Costa Diadema visiting Casablanca Tangier, Morocco (5) port guide Search cruises on Costa Diadema visiting Tangier, Morocco Alesund (4) port guide Search cruises on Costa Diadema visiting Alesund Olden, Norway (2) port guide Search cruises on Costa Diadema visiting Olden, Norway

Ship gallery

Costa Diadema 4D Cinema Hall Birreria Aperol Spritz Bar Laser Star Bravo Chef Show Wine Bar Teppanyaki Shopping Area Self Service Restaurant Samsara Restaurant Amarillo Ice Cream Disco

Deck plans

Deck plan for DECK 01 Excelsior

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Frequently asked questions

What is Costa Diadema?
Costa Diadema is a Dream-class ship operated by Costa Crociere and owned by Carnival Corporation. At the time of her October 2014 delivery she was the largest vessel ever to fly an Italian flag and Costa's largest ship. She is 133,019 GT, carries up to 4,947 passengers, and is currently deployed in South America.
What activities and recreation are on Costa Diadema?
Costa Diadema has three swimming pools and an outside promenade extending over 500 metres.
What are the staterooms like on Costa Diadema?
Costa Diadema has 1,862 cabins carrying up to 4,947 passengers. The ship has a six-generator electrical system supplied by General Electric.
Where does Costa Diadema sail?
Costa Diadema's inaugural seasons were in the Western Mediterranean. From November 2018 she began rotating between the Mediterranean (spring/summer) and the Persian Gulf (fall/winter). As of April 2026 she is operating short South American itineraries from Itajai and Santos, with a repositioning to Kiel and Copenhagen for Northern European fjords sailings planned from May 2026.
What is the history of Costa Diadema?
The keel was laid on 10 December 2012 at Fincantieri's Marghera shipyard. She was launched on 15 November 2013, delivered 25 October 2014, and performed a Vernissage Cruise from Trieste to Genoa on 1 November. Her naming ceremony was held on 7 November 2014 at the Port of Genoa, where she was christened by Italian travel agent Carolina Micelli.
How much does a cruise on Costa Diadema cost?
Fares start at $328 per person. The median fare across 94 upcoming sailings is $1,359 per person, and every sailing's page shows its full price history.

Sailing soon on Costa Diadema

Prices per person · incl. taxes & fees.

Showing 214 Costa Diadema sailings

Open in full search
Upcoming sailings on this ship
View From pp Destination Departs Nights

Call for price

 Scandinavia Aug 28, 2026 7

from $1,735

$247 / night

 Europe Aug 29, 2026 7

from $1,735

$247 / night

 Scandinavia Aug 29, 2026 7

from $1,508

$251 / night

 Baltic Aug 29, 2026 6

from $1,735

$247 / night

 Baltic Sep 4, 2026 7

from $1,885

$269 / night

 Scandinavia Sep 5, 2026 7

from $1,549

$129 / night

 Western Mediterranean Sep 11, 2026 12

Call for price

 Northern Europe Sep 11, 2026 11

from $1,333

$133 / night

 Northern Europe Sep 11, 2026 10

from $564

$141 / night

 Baltic Sep 11, 2026 4

from $1,216

$135 / night

 Baltic Sep 12, 2026 9

from $1,362

$136 / night

 Mediterranean Sep 12, 2026 10

Call for price

 Mediterranean Sep 12, 2026 11

from $672

$168 / night

 Western Mediterranean Sep 21, 2026 4

from $1,497

$213 / night

 Western Mediterranean Sep 21, 2026 7

from $405

$101 / night

 Mediterranean Sep 22, 2026 4

from $570

$142 / night

 Europe Sep 23, 2026 4

from $413

$206 / night

 Mediterranean Sep 23, 2026 2

Call for price

 Mediterranean Sep 25, 2026 3

from $2,052

$186 / night

 Western Mediterranean Sep 26, 2026 11
View all 214 sailings
Complete sailing schedule

Frequently asked questions

What is Costa Diadema?
Costa Diadema is a Dream-class ship operated by Costa Crociere and owned by Carnival Corporation. At the time of her October 2014 delivery she was the largest vessel ever to fly an Italian flag and Costa's largest ship. She is 133,019 GT, carries up to 4,947 passengers, and is currently deployed in South America.
What activities and recreation are on Costa Diadema?
Costa Diadema has three swimming pools and an outside promenade extending over 500 metres.
What are the staterooms like on Costa Diadema?
Costa Diadema has 1,862 cabins carrying up to 4,947 passengers. The ship has a six-generator electrical system supplied by General Electric.
Where does Costa Diadema sail?
Costa Diadema's inaugural seasons were in the Western Mediterranean. From November 2018 she began rotating between the Mediterranean (spring/summer) and the Persian Gulf (fall/winter). As of April 2026 she is operating short South American itineraries from Itajai and Santos, with a repositioning to Kiel and Copenhagen for Northern European fjords sailings planned from May 2026.
What is the history of Costa Diadema?
The keel was laid on 10 December 2012 at Fincantieri's Marghera shipyard. She was launched on 15 November 2013, delivered 25 October 2014, and performed a Vernissage Cruise from Trieste to Genoa on 1 November. Her naming ceremony was held on 7 November 2014 at the Port of Genoa, where she was christened by Italian travel agent Carolina Micelli.
How much does a cruise on Costa Diadema cost?
Fares start at $328 per person. The median fare across 94 upcoming sailings is $1,359 per person, and every sailing's page shows its full price history.