Costa Diadema
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Entered service08/11/2014
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Tonnage132500
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Wheelchair Accessible Cabins30
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Number of Decks14
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Number of Elevators18
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Maximum Capacity4927
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Number of Crew1253
- View cruises
Costa Diadema
With fantastic onboard entertainment, mouth-watering cuisine to sample and spectacular sights to see, the luxurious and family friendly Costa Diadema is the perfect way to travel to some of the world’s most exciting destinations.
Costa Diadema Cruise Deals
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21 August 2026
Fjords and Norway from Kiel
£1,070 pp -
27 June 2026
Fjords and Norway from Copenhagen
£1,061 pp -
05 June 2026
Fjords and Norway from Kiel
£948 pp -
20 June 2026
Fjords and Norway from Copenhagen
£1,127 pp -
15 May 2026
Fjords and Norway from Kiel
£798 pp -
30 May 2026
Fjords and Norway from Copenhagen
£882 pp -
23 May 2026
Fjords and Norway from Copenhagen
£807 pp -
12 June 2026
Fjords and Norway from Kiel
£948 pp -
29 May 2026
Fjords and Norway from Kiel
£845 pp
Onboard Activities
Children's Facilities (4)
Kids can be kept entertained onboard Costa Diadema with Squok Club and the Kids pool, while the internet point, library and shopping centre provide recreation for the rest of the family.
Swimming (7)
Costa Diadema is home to a fantastic range of swimming pools for you to make a splash in, along with hot tubs for you to relax.
Restaurants (9)
Not lacking in food and drink choices, Costa Diadema offers an impressive seven restaurants and eleven bars to her guests. Cuisine options include a pizzeria, teppanyaki restaurant and an ice cream parlour. The Dresden Green pub gives an authentic homely pub-style feel and Toscana Wine Bar serves a number of mouth-watering wines.
Entertainment (26)
Entertainment onboard Costa Diadema is outstanding, with guests given a great number of options when it comes to things to see and do on a sea day. From the three-level theatre to the Country Rock club and disco, there are many options onboard for lively musical entertainment while gamers will also love the Laser Maze, Grand Prix racing car simulator and Casino.
Bars & Lounges (10)
Onboard Costa Diadema you’ll be treated to a great range of bars and lounges to explore throughout your trip, ranging from comfy venues to sit back with a book and take in the views to where you can catch up with friends before having a wild night out.
Fresh from the blog
Customer reviews for Costa Diadema
Costa Diadema super! Upgrade della cabina, escursioni molto belle e guide preparate, teatro molto divertente, e personale super gentile. Il cibo squisito. Insomma un'esperienza super!!!
This was our first cruise and we'll definitely be doing it again.
Super croisière souriant a l écoute dommage pour les activités le fran:u00e7:ais ils connaissent pas trop sinon ses genial pour notre première c était pour l anniversaire de mon mari c était grandiose je le conseille ses magique