Costa Diadema
Sails from Santos, Brazil · Fly into GRU
Page updated
Costa Diadema leaving Kiel, 2022 · Photo: HenSti, CC BY-SA 4.0, via Wikimedia Commons
About Costa Diadema
Costa Diadema is a Costa Cruises cruise ship of the Dream class, in service since 2014. She measures 132,500 gross tons and carries 3,724 guests with a crew of 1,253. She sails South America, Northern Europe, Norwegian Fjords, Mediterranean itineraries. We rate her 3.2 out of 5.
Costa Diadema is a modified Dream-class ship of 132,500 tons and about 3,700 guests at double occupancy, delivered by Fincantieri in October 2014. When new it was the largest ship flying the Italian flag, and it was Costa's flagship until Costa Toscana took over in 2022. Its Solemio spa covers about 7,800 square meters, and a 2024 refit added a Heineken cafe, a steakhouse, the Archipelago and Sushino restaurants and a Sunset bar. In winter 2026-27 it sails South American cruises from Santos, Itajai, Buenos Aires and Montevideo, and in summer 2027 it moves to Northern Europe for Norway and Baltic cruises from Kiel and Copenhagen.
Ship facts
- Guests
- 3,724
- Crew 1,253 · 1:3.0
- Entered service
- 2014
- Refitted 2024
- Length
- 306 m
- Longer than 83% of 575 ships
- Decks
- 19
Costa Diadema is bigger than 81% of the 418 cruise ships in service on Cruises Frog with a tonnage on record, and carries more guests than 90%. At 35.6 gross tons per guest she is tighter than 65% of 416; the median ship is 39.4.
Ratings
- Cabins
- 3/5, fleet average 3.1
- Dining
- 3/5, fleet average 3.0
- Entertainment
- 3/5, fleet average 3.3
- Service
- 3/5, fleet average 3.0
- Pools & decks
- 3/5+0.6, fleet average 2.4
- Value
- 4/5, fleet average 4.0
Editorial scores, 1 to 5 per metric; the overall is their average, not an average of reader reviews. Ticks mark the Costa Cruises fleet average across 8 rated ships in service.
More from Costa Cruises
The ships in the fleet closest to her in size.
3.0 ★Costa Pacifica2009 · 114,500 GT · 3,780 guests · MediterraneanCosta Pacifica is a Concordia-class ship of about 114,500 tons, handed over by Fincantieri in May 2009 and christened in Genoa in a joint ceremony with Costa Luminosa that set a…
3.0 ★Costa Serena2007 · 114,147 GT · 3,700 guests · Mediterranean · South AmericaCosta Serena is a Concordia-class ship of about 114,000 tons, built by Fincantieri at Sestri Ponente and in service since 2007. Its public rooms follow a Mount Olympus theme, and…
3.0 ★Costa Fascinosa2012 · 113,321 GT · 3,780 guests · Mediterranean · CaribbeanCosta Fascinosa is the last Concordia-class ship to be built, delivered from Fincantieri's Marghera yard in spring 2012, four months after the loss of its sister Costa Concordia…Official deck plans
Photos
Costa Diadema leaving Kiel, 2022Photo: HenSti, CC BY-SA 4.0, via Wikimedia Commons
Where she sails
- South AmericaCape Horn, Patagonia and the Amazon, in the southern summer
- Northern Europethe Baltic, British Isles and Iceland, May to September
- Norwegian Fjordsfjords and the North Cape, with midnight sun in summer
- MediterraneanWestern Med, Greek Isles and Adriatic, mostly April to November
Home port: Santos, Brazil.
Flying in for your cruise?
Costa Diadema sails from Santos, Brazil. The airport is São Paulo/Guarulhos International (GRU), with 21 lounges to wait in before you board.
- Espaço Banco Safra Lounge (former Star Alliance Lounge)GRU Terminal 34.8 ★
- Plaza Premium Lounge (T3)GRU Terminal 34.8 ★
- Casa BBGRU Terminal 34.7 ★
Quick answers
Which cruise line operates Costa Diadema?
Costa Diadema is operated by Costa Cruises and belongs to its Dream class.
How big is Costa Diadema?
Costa Diadema measures 132,500 gross tons and 306 metres in length, with 19 decks.
How does Costa Diadema compare in size with other cruise ships?
Costa Diadema is bigger than 81% of the 418 cruise ships in service on Cruises Frog with a tonnage on record, and carries more guests than 90%. At 35.6 gross tons per guest she is tighter than 65% of 416; the median ship is 39.4.
How crowded does Costa Diadema feel?
Costa Diadema has a passenger space ratio of 35.6: 132,500 gross tons for 3,724 guests. Ratios over 50 feel spacious and under 30 busy, so Costa Diadema feels comfortable for her size.
How many passengers does Costa Diadema carry?
Costa Diadema carries 3,724 guests at double occupancy, with a crew of 1,253 (about 3.0 guests per crew member).
When did Costa Diadema enter service?
Costa Diadema entered service in 2014 and was last refurbished in 2024.
Where does Costa Diadema sail?
Costa Diadema sails South America, Northern Europe, Norwegian Fjords and Mediterranean itineraries. Her home port is Santos, Brazil.
Which airport should I fly into for Costa Diadema?
Costa Diadema sails from Santos, Brazil. Fly into São Paulo/Guarulhos International (GRU), which has 21 airport lounges listed on Lounge Frog.
Where can I find the deck plans for Costa Diadema?
Costa Cruises publishes the deck plans for Costa Diadema; this page links to Deck plans (interactive, on ship page).
How is Costa Diadema rated?
Cruises Frog rates Costa Diadema 3.2 out of 5 overall, the average of 6 editorial scores. She scores best on value (4/5) and lowest on service (3/5).
Traveller reviews
What people who've been say. One review each; you can update yours.
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