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Costa Diadema
Itinerary : Buenos Aires, Montevideo, Itajai, Santos, Buenos Aires
12 other departures
Costa Diadema
8 d
Inside Stateroom
Buenos Aires
3/10/2027
from
US$ 949
Other departures:
25 Feb 2026
18 Mar 2026
23-30 Dec 2026
Other departures
Itinerary : Copenhagen, Flaam, Maloy, Bergen, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
5/8/2027
from
US$ 1,017
Other ports of embarkation:
KielItinerary : Copenhagen, Flaam, Bergen, Arhus, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
5/1/2027
from
US$ 1,017
Other ports of embarkation:
KielItinerary : Copenhagen, Gdansk, Visby, Stockholm, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
5/15/2027
from
US$ 1,075
Other ports of embarkation:
KielItinerary : Copenhagen, Hellesylt, Geiranger, Olden, Stavanger, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
9/5/2026
from
US$ 1,082
Other ports of embarkation:
KielItinerary : Copenhagen, Hellesylt, Geiranger, Bergen, Haugesund, Kiel, Copenhagen
1 other departures
Costa Diadema
8 d
Inside Stateroom
Copenhagen
5/22/2027
from
US$ 1,133
Other ports of embarkation:
KielOther departures:
18 Jul 2026
Itinerary : Barcelona, Tangier, Casablanca, Cadiz, Gibraltar (Strait), Malaga, Marseille, Savona, Barcelona
2 other departures
Costa Diadema
11 d
Inside Stateroom
Barcelona
10/9/2026
from
US$ 1,157
Itinerary : Copenhagen, Hellesylt, Geiranger, Maloy, Haugesund, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
5/29/2027
from
US$ 1,191
Other ports of embarkation:
KielItinerary : Copenhagen, Hellesylt, Geiranger, Alesund, Stavanger, Kiel, Copenhagen
7 other departures
Costa Diadema
8 d
Inside Stateroom
Copenhagen
8/29/2026
from
US$ 1,192
Other ports of embarkation:
KielOther departures:
30 May 2026
06-13-27 Jun 2026
25 Jul 2026
Other departures
Itinerary : Barcelona, Cadiz, Lisbon, Gibraltar (Strait), Malaga, Cartagena, Marseille, Savona, Barcelona
Costa Diadema
12 d
Inside Stateroom
Barcelona
9/28/2026
from
US$ 1,198
Itinerary : Barcelona, Cadiz, Lisbon, Gibraltar (Strait), Malaga, Cartagena, Marseille, Savona, Barcelona
Costa Diadema
13 d
Inside Stateroom
Barcelona
10/19/2026
from
US$ 1,226
Itinerary : Copenhagen, Flaam, Bergen, Stavanger, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
5/16/2026
from
US$ 1,243
Other ports of embarkation:
KielItinerary : Copenhagen, Flaam, Alesund, Stavanger, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
5/23/2026
from
US$ 1,243
Other ports of embarkation:
KielItinerary : Barcelona, Alicante, Lisbon, Cadiz, Gibraltar (Strait), Malaga, Marseille, Savona, Barcelona
1 other departures
Costa Diadema
11 d
Inside Stateroom
Barcelona
10/13/2027
from
US$ 1,246
Other departures:
23 Sep 2027
Itinerary : Copenhagen, Hellesylt, Geiranger, Bergen, Stavanger, Kiel, Copenhagen
16 other departures
Costa Diadema
8 d
Inside Stateroom
Copenhagen
6/20/2026
from
US$ 1,280
Other ports of embarkation:
KielOther departures:
04-11 Jul 2026
01-08-15-22 Aug 2026
05-12-19 Jun 2027
Other departures
Itinerary : Copenhagen, Hellesylt, Geiranger, Bergen, Arhus, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
6/26/2027
from
US$ 1,366
Other ports of embarkation:
KielItinerary : Copenhagen, Hellesylt, Geiranger, Maloy, Arhus, Kiel, Copenhagen
Costa Diadema
8 d
Inside Stateroom
Copenhagen
7/31/2027
from
US$ 1,658
Other ports of embarkation:
KielItinerary : Marseille, Savona, Barcelona, Marseille
1 other departures
Costa Diadema
5 d
Inside Stateroom
Marseille
10/28/2026
from
US$ 481
Other ports of embarkation:
SavonaOther departures:
22 Sep 2026
Itinerary : Savona, Barcelona, Marseille, Savona
1 other departures
Costa Diadema
5 d
Inside Stateroom
Savona
10/29/2026
from
US$ 481
Other ports of embarkation:
MarseilleOther departures:
23 Sep 2026
Itinerary : Santos, Ilhabella, Itajai, Santos
6 other departures
Costa Diadema
5 d
Inside Stateroom
Santos
12/6/2026
from
US$ 552
Other ports of embarkation:
ItajaiOther departures:
29 Mar 2026
05-12 Apr 2026
29 Nov 2026
Other departures
Itinerary : Itajai, Santos, Ilhabella, Itajai
3 other departures
Costa Diadema
5 d
Inside Stateroom
Itajai
12/5/2026
from
US$ 552
Other ports of embarkation:
SantosOther departures:
28 Nov 2026
12 Dec 2026
20 Mar 2027
Itinerary : Cadiz, Gibraltar (Strait), Malaga, Marseille, Savona, Barcelona, Cadiz
Costa Diadema
9 d
Inside Stateroom
Cadiz
10/13/2026
from
US$ 894
Itinerary : Itajai, Santos, Buenos Aires, Montevideo, Itajai
17 other departures
Costa Diadema
8 d
Inside Stateroom
Itajai
3/7/2026
from
US$ 948
Other departures:
21-28 Feb 2026
14-21 Mar 2026
19-26 Dec 2026
Other departures
Latest from the Dream class, Costa Diadema has diversified its public spaces as much as possible and thus offers its customers a dozen bars and salons with various atmospheres. You can, for example, savor a delicious Spritz at the Stella del bar on the outside while enjoying a magnificent view of the sea. You will have the possibility of choosing between a wide range of beers accompanied by Bretzels at the Dresden Green In a setting that recalls German taverns and if your preferences are rather towards the tasting of great Italian wines you can join the Vinoteca Gran Duca di Toscana. To enhance your evenings you will find on board the bars ship with a dance floor and different atmospheres to satisfy all musical tastes.
In terms of gastronomy, cruises will be able to choose their preferences thanks to the 7 restaurants present on board the ship. Thus, asian cuisine fans will find their happiness in the Japanese Taverne Teppanyaki to taste specialties prepared on the classic "Teppan". If you want to savor delicious pizzas, the Pizzeria La Piazza will immerse you in a typically Italian atmosphere and if you like more traditional cuisine, the restaurants Fiorentino and Adularia will delight you, for a fixed and predefined schedule: 1st or 2nd service. The Corona Blu restaurant-buffet is the ideal formula for meals without time constraints in an informal atmosphere. For privileged moments with a more intimate and sophisticated restoration and medium reservation, go to the Club Diadema restaurant. Cruise passes who stay in the Samsara suites and cabins benefit from a wellness kitchen in the Samsara restaurant which is exclusively reserved for them.
On board the boat you will have a wide range of leisure. After dinner, the evening begins with rock music live at the Country Rock Club, or with fabulous dance shows in the magnificent Gran Bar Orlo room. You can also meet at the Emerald theater for exceptional shows taking up the greatest hits of pop and rock and to live to the rhythm of Italy through songs and stars "Made in Italy". But maybe you want to try your luck at the casino? During the day, we offer you an equally rich program with laser or shooting game parts thanks to the laser shoot simulator. For a cinema evening, you can opt between an outdoor cinema by the pool or a stronger experience in sensations in the 4D cinema.
Because a cruise is also an experience to share with the family, the Italian company wanted to offer young passengers from the liner different activities adapted to their tastes according to their age groups. The little ones will be able to take advantage of the magical entourage of the squok club equipped with awakening carpets and state -of -the -art video games as well as an outdoor playground with a three -story castle for young budding pirates, kings and small Princesses. In order to perfect the children's stay aboard the boat, the ship has set up unpublished programs such as "the apprentice captain". Little girls who want to slip into the shoes of a princess in turn have the "Princess for a day" package. The older ones find themselves in the Teen Zone to participate in activities that will be happy, for example, evenings with dress code: Fluo evening, fashion evening, white evening, hip-hop evening ... or even team games : Girls against boys, selfie hunting, election of Miss Costa, election of Mister Costa.
On board you will find 3 swimming pools that arise as real places of life and meeting for young and old. The central swimming pool has a retractable roof which allows you to enjoy it regardless of the weather. The pool of the rear bridge, on the other hand, is next to the Corona Blu buffet which is arranged with tables and parasols allowing to have lunch outside. A second swimming pool, outdoor with a pretty waterfall, is at the back of the bridge 10. It is the perfect place to swim quietly and enjoy the sun. Its situation at the back of the bridge also offers a wonderful view of the sea.
Do you want to maintain your physical form even during a cruise? Start the morning with a muscle warm -up session or, if you wish, you can book an individual session with a personal coach or run on the outdoor circuit. If your preferences go to team sports, you can challenge your friends in the multisports field and play football, volleyball or basketball. If you are an fans of walking and morning jogging, you will certainly appreciate the presence of the outdoor track. The ship also has a gym with modern infrastructure with, among other things, bodybuilding and cardiotraining devices. Coaches await you for effective training and adapted to your expectations.
At Beauty Spa Solemio, in the heart of a sober, luxurious and bright decor of 6,500 m², you will have the choice between exceptional care that can range from massage, sauna, aromatic hammam, until relaxation. Balneotherapy and massage with hot stones or UV-ray tanning are also part of the offers offered in this wellness area. All these installations, to which you must add a beauty salon with hairdresser that will guide you in the choice of your new hairstyle, as well as manicure and pedicure, are framed by a 30 of smiling, attentive and a kindness that makes warm in the heart.
The Costa Diadema, launched in 2014, is a cruise ship operated by Costa Cruises. With a length of approximately 1,003 ft and a capacity for 4,947 passengers, it is one of the largest vessels in the fleet. The ship features 1,862 cabins, including 756 with private balconies, and offers a range of activities such as a three-deck theater, a casino, and a spa covering 83,980 sq. ft. Passengers can choose from around ten diverse restaurants, a wide selection of bars and lounges, and an outdoor promenade spanning 1,640 ft with breathtaking sea views. The ship is also equipped with SpaceX’s Starlink system, providing high-speed Wi-Fi onboard.
The Costa Diadema is fitted with an exhaust gas cleaning system (EGCS) that significantly reduces atmospheric emissions. Thanks to shore power, the vessel can connect to the onshore electrical grid during port stops in compatible locations, allowing its engines to be shut down and minimizing direct emissions. Waste management onboard is optimized through rigorous sorting, with 100% of waste properly separated.
Interior cabins provide a cozy and functional space, starting at approximately 151 sq. ft. They come furnished with either a double bed or two twin beds, a bathroom equipped with a shower, and modern amenities such as a hairdryer, flat-screen TV, telephone, safe, and air conditioning.
Ocean-view cabins offer a space starting at approximately 205 sq. ft. Equipped with either a double bed or twin beds, they include a bathroom with a shower, a hairdryer, flat-screen TV, telephone, safe, and air conditioning.
Balcony cabins are ideal for enjoying the sea breeze right from your room. With an area beginning at approximately 215 sq. ft., they feature a double bed or two twin beds, a bathroom with a shower, and the same modern amenities as the other categories: hairdryer, flat-screen TV, telephone, safe, and air conditioning.
For an even more comfortable experience, the Costa Diadema offers suites starting at approximately 334 sq. ft. They come furnished with either a double bed or two twin beds, a premium bathroom featuring both a shower and a bathtub, and all the necessary amenities for a perfect stay: hairdryer, flat-screen TV, telephone, safe, and air conditioning. The suites are available in three types: Mini Suites with a private terrace and a hydro-massage shower, Suites with more spacious areas and two TVs, and Grand Suites offering even more generous space with a large terrace. Upon arrival, a bottle of sparkling wine awaits you, and you’ll benefit from personalized service from a butler, ensuring dedicated attention throughout your cruise.
The Costa Diadema offers a wealth of activities for both adults and families. Passengers can enjoy a variety of shows in the theater, which spans three decks, try their luck at the onboard casino, or join the nightclub for lively evenings.
For sports enthusiasts, the ship features a fully equipped fitness center. It also boasts three swimming pools, including one with a retractable roof, as well as eight whirlpool baths—perfect for relaxing after a workout. The wellness center, Spa Solemio, offers a wide range of services such as treatments, massages, whirlpool baths, sauna, steam room, and thalassotherapy.
Young passengers on the Costa Diadema are equally well catered for with age-appropriate spaces and activities.
The ship dedicates a large area on deck 12 for children, featuring a castle and a pirate galleon for memorable adventures. The Squok Baby Area provides a space specifically designed for toddlers aged 1 to 3, accompanied by their parents. With playful and stimulating activities, this area is ideal for fostering early development. The Squok Club is divided into Mini Club (ages 3–6) and Maxi Club (ages 7–11), offering games, workshops, and events led by specialized animators. Peppa Pig, the ship’s mascot, makes appearances to create fun and memorable moments for the little ones.
Teenagers are accommodated in the Teen Club Junior (ages 12–14) and Teen Club (ages 15–17), each featuring dedicated programs. Additionally, the ship includes an arcade room, perfect for enjoying family entertainment.
Onboard the Costa Diadema, the dining experience is varied, with around ten restaurants to satisfy every taste. The main restaurants included in the cruise fare (full board) offer quality meals, such as Restaurant Fiorentino and Restaurant Adularia. The ship also houses specialty venues like Pizzeria Pummid’Oro for authentic pizza enthusiasts, or the Teppanyaki, which takes you on a culinary journey to Japan. A special mention goes to Archipelago, an elegant restaurant showcasing menus created by renowned chefs Hélène Darroze, Bruno Barbieri, and Ángel León, all set within an immersive decor that celebrates the ocean.
To complement your onboard experience, the Costa Diadema features around ten bars and lounges with varied atmospheres, perfect for relaxing or celebrating. The Grand Bar Orlov offers a lively ambiance with shows and entertainment, music lovers will appreciate the Piano Bar, and for a relaxing experience by the sea, the Sunset Bar welcomes you with its delicious cocktails.
Costa Cruises offers a variety of itineraries on the Costa Diadema that combine comfort with discovery, including Mediterranean cruise routes. These journeys provide unique experiences that blend culture, Mediterranean cuisine, postcard-perfect beaches, and enchanting landscapes. Explore remarkable UNESCO World Heritage sites, such as the Sagrada Familia in Barcelona—a must-see on any cruise in Spain. You opt for a cruise from Marseille or choose from one of the many cruises departing from Barcelona.
The Costa Diadema also offers the opportunity to discover Northern Europe through cruises departing from Copenhagen and Kiel. Discover majestic fjords, picturesque villages like Flam, and historic cities such as Bergen and Stavanger on an unforgettable Norwegian cruise.
Additionally, the Costa Diadema features cruises to Northern Europe with transatlantic crossings linking the Mediterranean. These cruises departing from Kiel or Copenhagen, allow passengers to experience a diversity of landscapes and cultures while enjoying the ship’s facilities and services.
Cruises on the Costa Diadema are available at a range of prices to suit various budgets. Interior cabins start at $250 for 4-day Mediterranean mini-cruises. For longer itineraries, such as cruises linking Northern Europe to the Mediterranean via the Atlantic or transatlantic cruises, prices can reach up to $1500. These rates vary depending on the duration, season, and current promotions.
On a cruise aboard the Costa Diadema, your cabin accommodation, meals at the main restaurants, and a selection of non-alcoholic beverages (water, tea, coffee, and certain juices) served during meals are included. Port taxes and fees, as well as multilingual support for passengers, are also covered. Additional paid options include specialty restaurants, extended beverage packages, spa treatments, and organized shore excursions.
Book your cruise on the Costa Diadema at cruise.us and enjoy a wide selection of itineraries tailored to your dates, desired duration, and preferred destinations. For personalized assistance, contact the advisors at cruise.us by phone and complete your booking with ease.
Commissioning:
2014
Nb of passengers:
4947
Nb crew members:
1253
Width:
37 m
Length:
306 m
Speed:
22 Knots
+ 1 (786) 8400111
