September 4, 2026
7-Night Northern Europe & Fjords Cruise
Departing from Kiel
From
$1,735
Price / day
$248
Costa Diadema|Costa Toscana
Costa Diadema vs Costa Toscana
Compare ship age, size, passenger capacity, itineraries and upcoming cruise prices.
VS
Newer Ship
Costa Toscana
Built in 2021
7 years newer
Lower Price Per Day
Costa Toscana
$107 / day
$152 less per day
More Spacious Ship
Costa Toscana
28.4 GT per guest
Gross tonnage divided by passenger capacity
Costa Diadema vs Costa Toscana: Quick Comparison
Costa Toscana is the newer ship in this comparison. Built in 2021, it is 7 years newer than Costa Diadema, which entered service in 2014. Costa Toscana is approximately 40% larger by gross tonnage at 186,364 GT. Costa Toscana also carries 1,607 more passengers. Costa Diadema has upcoming sailings in Northern Europe & Fjords, while Costa Toscana has sailings in Western Mediterranean. Based on the upcoming cruises currently displayed, Costa Toscana 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 Toscana |
|---|---|---|
| Year Built | 2014 | 2021Newer |
| Gross Tonnage | 133,019 GT | 186,364 GT |
| Passenger Capacity | 4,947 | 6,554 |
| Space per Passenger | 26.9 GT | 28.4 GT |
| Length | 306 m | 337 m |
| Decks | — | — |
| Cabins | — | — |
Key Differences: Costa Diadema vs Costa Toscana
Age
Costa Toscana was built in 2021, making it 7 years newer than Costa Diadema, which was built in 2014.
Size
At 186,364 GT, Costa Toscana is approximately 40% larger by gross tonnage than Costa Diadema at 133,019 GT.
Passenger capacity
Costa Toscana carries up to 6,554 passengers compared with 4,947 aboard Costa Diadema, a difference of 1,607 passengers.
Passenger space
Costa Toscana offers more space per passenger: 28.4 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 Toscana (Western Mediterranean) currently cover different regions or departure ports.
Price
Among the upcoming sailings currently displayed, Costa Toscana has the lower average starting price per day at $107 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 Toscana
Western Mediterranean from Civitavecchia | Rome
- Departure Port
- Civitavecchia
- Region
- Western Mediterranean
- Nights
- 7
- Round Trip
- Yes
- Day 1 · Sep 3, 2026Civitavecchia
- Day 2 · Sep 4, 2026Genoa
- Day 3 · Sep 5, 2026Marseilles
- Day 4 · Sep 6, 2026Barcelona
- Day 5 · Sep 7, 2026At Sea
- Day 6 · Sep 8, 2026Cagliari
- Day 7 · Sep 9, 2026Naples
- Day 8 · Sep 10, 2026Civitavecchia
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 Toscana
September 3, 2026
7-Night Western Mediterranean Cruise
Departing from Civitavecchia
From
$752
Price / day
$107
September 4, 2026
7-Night Western Mediterranean Cruise
Departing from Genoa
From
$750
Price / day
$107
Prices shown are starting fares and may change.
Which Ship Is Cheaper?
Costa Diadema
Average
$259 / day
VS
Costa Toscana
Average
$107 / day
Costa Toscana has the lower price per day among the sailings shown
$107/day vs $259/day
About $152 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 ship with the lower passenger capacity.
- You want to sail in Northern Europe & Fjords.
- Departing from Kiel and Copenhagen works for your plans.
- You do not place as much importance on sailing on a newer ship than Costa Toscana.
Choose Costa Toscana 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 value having more space per passenger (higher GT-per-guest ratio).
- You want to sail in Western Mediterranean.
- Departing from Civitavecchia and Genoa works for your plans.
- The lower price per day among the sailings currently shown matters to you.
Costa Diadema vs Costa Toscana: Final Comparison Summary
Newer
Costa Toscana
Built in 2021
7 years newer
Bigger
Costa Toscana
186,364 GT
40% larger by gross tonnage
Lower Price Per Day
Costa Toscana
$107 / day
About $152 less per day
- Costa Toscana is 7 years newer.
- Costa Toscana is 40% larger by gross tonnage.
- Costa Toscana carries 1,607 more passengers.
- Costa Toscana offers more space per passenger (28.4 GT per guest).
Frequently Asked Questions
Which is newer, Costa Diadema or Costa Toscana?
Costa Toscana is newer. It was built in 2021, while Costa Diadema was built in 2014, making Costa Toscana 7 years newer.
Which is bigger, Costa Diadema or Costa Toscana?
Costa Toscana is larger by gross tonnage. It measures approximately 186,364 GT compared with Costa Diadema at 133,019 GT.
Which ship carries more passengers?
Costa Toscana has a passenger capacity of approximately 6,554, compared with 4,947 for Costa Diadema.
Which ship is more spacious, Costa Diadema or Costa Toscana?
Costa Toscana has the higher passenger space ratio at 28.4 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 Toscana?
Among the upcoming sailings currently displayed, Costa Toscana has the lower average starting price per day at $107 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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