Costa Diadema
Explore Costa Diadema by Costa Cruises — onboard facilities, cabin types, full specifications and upcoming sailings.
Prices from £609 pp
● About
About Costa Diadema
Costa Diadema is a Dream-class cruise ship owned by Carnival Corporation and operated by Costa Crociere. Delivered in October 2014, it was the largest Italian-flagged vessel at the time and served as Costa's flagship until 2022.
● Technical Details
Ship specifications
Year Built
2014
Gross Tonnage
132,500 GT
Passenger Capacity
4,927
Crew
1,253
Decks
0
Length
306m
Speed
● Accommodation
Cabin types
Inside Cabin
Sleeps 2
● Set Sail
Upcoming sailings on Costa Diadema
Deal6 NIGHTSCosta Cruises · Costa Diadema
2-night Marseille & 4-night Italy & Balearic Islands
Mediterranean · Marseille
Price on request
Enquire
Deal4 NIGHTSCosta Cruises · Costa Diadema
2-night Nice & 2-night Med Taster
Mediterranean · Savona
Price on request
Enquire
Deal14 NIGHTSCosta Cruises · Costa Diadema
2-night Lisbon & 14-night Transatlantic to Rio de Janeiro
South America · Lisbon
Price on request
Enquire
Deal13 NIGHTSCosta Cruises · Costa Diadema
2-night Gran Canaria & 13-night Transatlantic to Santos
South America · Las Palmas, Gran Canaria
Price on request
Enquire● Upcoming Sailings
Upcoming Costa Diadema Cruises
2-night Marseille & 4-night Italy & Balearic Islands
Marseille · 6 nights · Mediterranean
20 Sept 2026
From £669 pp
2-night Nice & 2-night Med Taster
Savona · 4 nights · Mediterranean
21 Sept 2026
From £609 pp
2-night Lisbon & 14-night Transatlantic to Rio de Janeiro
Lisbon · 14 nights · South America
6 Nov 2026
From £1499 pp
2-night Gran Canaria & 13-night Transatlantic to Santos
Las Palmas, Gran Canaria · 13 nights · South America
8 Nov 2026
From £1439 pp
2-night Barcelona & 3-night Mediterranean Taster
Barcelona · 5 nights · Mediterranean
18 Sept 2027
From £689 pp
Common Questions