September 4, 2026
7-Night Northern Europe & Fjords Cruise
Departing from Kiel
From
$1,735
Price / day
$248
Costa Diadema|Costa Fortuna
Costa Diadema vs Costa Fortuna
Compare ship age, size, passenger capacity, itineraries and upcoming cruise prices.
VS
Newer Ship
Costa Diadema
Built in 2014
11 years newer
Lower Price Per Day
Costa Fortuna
$203 / day
$56 less per day
More Spacious Ship
Costa Fortuna
29.6 GT per guest
Gross tonnage divided by passenger capacity
Costa Diadema vs Costa Fortuna: Quick Comparison
Costa Diadema is the newer ship in this comparison. Built in 2014, it is 11 years newer than Costa Fortuna, which entered service in 2003. Costa Diadema is approximately 30% larger by gross tonnage at 133,019 GT. Costa Diadema also carries 1,477 more passengers. Costa Diadema has upcoming sailings in Northern Europe & Fjords, while Costa Fortuna has sailings in Eastern Mediterranean. Based on the upcoming cruises currently displayed, Costa Fortuna has the lower average starting price per day. The sailings shown cover different itineraries, so the price per day figures are not a like-for-like comparison. Cruise fares vary significantly by itinerary, departure date and cabin availability, so any price difference should be treated as a snapshot rather than a permanent gap.
Ship Comparison
| Spec | Costa Diadema | Costa Fortuna |
|---|---|---|
| Year Built | 2014Newer | 2003 |
| Gross Tonnage | 133,019 GT | 102,669 GT |
| Passenger Capacity | 4,947 | 3,470 |
| Space per Passenger | 26.9 GT | 29.6 GT |
| Length | 306 m | 272.2 m |
| Decks | — | — |
| Cabins | — | — |
Key Differences: Costa Diadema vs Costa Fortuna
Age
Costa Diadema was built in 2014, making it 11 years newer than Costa Fortuna, which was built in 2003.
Size
At 133,019 GT, Costa Diadema is approximately 30% larger by gross tonnage than Costa Fortuna at 102,669 GT.
Passenger capacity
Costa Diadema carries up to 4,947 passengers compared with 3,470 aboard Costa Fortuna, a difference of 1,477 passengers.
Passenger space
Costa Fortuna offers more space per passenger: 29.6 GT per guest, compared with 26.9 aboard Costa Diadema. A higher passenger space ratio generally means less crowding in public areas.
Itineraries
The upcoming sailings shown for Costa Diadema (Northern Europe & Fjords) and Costa Fortuna (Eastern Mediterranean) currently cover different regions or departure ports.
Price
Among the upcoming sailings currently displayed, Costa Fortuna has the lower average starting price per day at $203 per day.
Compare Ports of Call
Costa Diadema
Northern Europe & Fjords from Kiel
- Departure Port
- Kiel
- Region
- Northern Europe & Fjords
- Nights
- 7
- Round Trip
- Yes
- Day 1 · Sep 4, 2026Kiel
- Day 2 · Sep 5, 2026Copenhagen
- Day 3 · Sep 6, 2026At Sea
- Day 4 · Sep 7, 2026Hellesylt
- Day 5 · Sep 8, 2026Geiranger
- Day 6 · Sep 9, 2026Olden
- Day 7 · Sep 10, 2026Stavanger
- Day 8 · Sep 11, 2026At Sea
- Day 9 · Sep 12, 2026Kiel
Dates are estimates based on the published departure date.
Costa Fortuna
Eastern Mediterranean from Piraeus | Athens
- Departure Port
- Piraeus
- Region
- Eastern Mediterranean
- Nights
- 7
- Round Trip
- Yes
- Day 1 · Sep 4, 2026Piraeus
- Day 2 · Sep 5, 2026At Sea
- Day 3 · Sep 6, 2026Istanbul
- Day 4 · Sep 7, 2026Mykonos
- Day 5 · Sep 8, 2026Heraklion
- Day 6 · Sep 9, 2026Rhodes
- Day 7 · Sep 10, 2026Thira
- Day 8 · Sep 11, 2026Piraeus
Dates are estimates based on the published departure date.
Upcoming Cruises & Prices
Costa Diadema
September 5, 2026
7-Night Northern Europe & Fjords Cruise
Departing from Copenhagen
From
$1,885
Price / day
$269
Costa Fortuna
September 4, 2026
7-Night Eastern Mediterranean Cruise
Departing from Piraeus
From
$1,660
Price / day
$237
September 6, 2026
5-Night Eastern Mediterranean Cruise
Departing from Istanbul
From
$840
Price / day
$168
Prices shown are starting fares and may change.
Which Ship Is Cheaper?
Costa Diadema
Average
$259 / day
VS
Costa Fortuna
Average
$203 / day
Costa Fortuna has the lower price per day among the sailings shown
$203/day vs $259/day
About $56 less per day
This comparison is based on the upcoming sailings currently shown and may not represent like-for-like itineraries.
Cruise prices vary by departure date, itinerary, cabin type and availability.
Which Ship Should You Choose?
Choose Costa Diadema if…
- You prefer the newer ship.
- You prefer the larger ship by gross tonnage.
- You do not mind sailing on a ship with a higher passenger capacity.
- You want to sail in Northern Europe & Fjords.
- Departing from Kiel and Copenhagen works for your plans.
Choose Costa Fortuna if…
- You prefer the ship with the lower passenger capacity.
- You value having more space per passenger (higher GT-per-guest ratio).
- You want to sail in Eastern Mediterranean.
- Departing from Piraeus and Istanbul works for your plans.
- The lower price per day among the sailings currently shown matters to you.
- You do not place as much importance on sailing on a newer ship than Costa Diadema.
Costa Diadema vs Costa Fortuna: Final Comparison Summary
Newer
Costa Diadema
Built in 2014
11 years newer
Bigger
Costa Diadema
133,019 GT
30% larger by gross tonnage
Lower Price Per Day
Costa Fortuna
$203 / day
About $56 less per day
- Costa Diadema is 11 years newer.
- Costa Diadema is 30% larger by gross tonnage.
- Costa Diadema carries 1,477 more passengers.
- Costa Fortuna offers more space per passenger (29.6 GT per guest).
Frequently Asked Questions
Which is newer, Costa Diadema or Costa Fortuna?
Costa Diadema is newer. It was built in 2014, while Costa Fortuna was built in 2003, making Costa Diadema 11 years newer.
Which is bigger, Costa Diadema or Costa Fortuna?
Costa Diadema is larger by gross tonnage. It measures approximately 133,019 GT compared with Costa Fortuna at 102,669 GT.
Which ship carries more passengers?
Costa Diadema has a passenger capacity of approximately 4,947, compared with 3,470 for Costa Fortuna.
Which ship is more spacious, Costa Diadema or Costa Fortuna?
Costa Fortuna has the higher passenger space ratio at 29.6 GT per passenger, versus 26.9 for Costa Diadema. The ratio is gross tonnage divided by passenger capacity; a higher number means more ship space per guest.
Which ship is cheaper, Costa Diadema or Costa Fortuna?
Among the upcoming sailings currently displayed, Costa Fortuna has the lower average starting price per day at $203 per day versus $259 per day. Fares vary by itinerary, departure date, cabin type and availability.
Where does Costa Diadema sail?
The upcoming Costa Diadema sailings currently listed cover Northern Europe & Fjords, departing from Kiel and Copenhagen.
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