Spots going fastCosta Diadema vs MSC Euribia
Side-by-side cruise ship comparison · Updated January 2026
MSC Euribia is the significantly larger vessel at 205,700 GT — 55% more than Costa Diadema's 132,500 GT. Built in 2023, MSC Euribia is 9 years newer — an advantage for travellers seeking modern amenities and design. MSC Euribia accommodates 2,603 more guests (6,327 vs 3,724), making it the larger resort-at-sea — Costa Diadema trades capacity for a more intimate atmosphere.
Score: 1 – 6
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Category
Costa Diadema
MSC Euribia
Size
132,500 GT
205,700 GT
Passengers
3,724
6,327
Year Built
2014
2023
Crew Ratio
1:3.0
1:3.0
Space Ratio
35.6
32.5
Decks
—
—
Length
306m
331m
From Price
$1,997/pp
$1,455.33/pp
Comparison Verdict
MSC Euribia is the significantly larger vessel at 205,700 GT — 55% more than Costa Diadema's 132,500 GT. Built in 2023, MSC Euribia is 9 years newer — an advantage for travellers seeking modern amenities and design. MSC Euribia accommodates 2,603 more guests (6,327 vs 3,724), making it the larger resort-at-sea — Costa Diadema trades capacity for a more intimate atmosphere.
| Category | Winner |
|---|---|
| Size | MSC Euribia |
| Capacity | MSC Euribia |
| Modernity | MSC Euribia |
| Service | MSC Euribia |
| Spaciousness | Costa Diadema |
| Decks | Tie |
| Length | MSC Euribia |
| Fleet Power | MSC Euribia |
Bottom line: MSC Euribia leads 6–1 across our categories — strongest in Size. Choose MSC Euribia for overall superiority; pick Costa Diadema if Spaciousness matter more to you.
Which Ship Is Right for You?
Choose MSC Euribia if...
- You want the newer ship (built 2023, 9yr newer)
- Size matters to you (205,700 GT)
- More onboard variety (6,327 guests)
- Better service ratio (3.0:1 crew ratio)
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Frequently Asked Questions
How is the comparison score calculated?
We compute scores across 8 categories using real spec data — gross tonnage, passenger capacity, crew capacity, year built, length, deck count, space ratio, and fleet power. Each category awards one point to the winning ship.
What is the space ratio and why does it matter?
Space ratio is gross tonnage divided by passenger capacity. A higher number means more space per guest. Luxury lines typically score above 40; mass-market ships often fall in the 30-40 range.
What does the passenger-to-crew ratio mean?
Passengers per crew member. Lower is better — more staff per guest means better service. Luxury lines aim below 2:1; large mainstream ships may be 3-4:1.
Are the prices shown accurate?
Prices are sourced from Cruisebound and reflect real-time availability. They may change based on cabin type, date, and demand. Click through to see the latest fares.
Can I compare more than two ships?
Yes — up to four ships. Use the search tool on the compare hub page to add additional ships.
How current is the ship data?
Specifications come from our database of 380+ vessels, revalidated every 5 minutes via ISR. The "Updated" timestamp shows when records were last modified.
