Spots going fastCosta Diadema vs Norwegian Breakaway
Side-by-side cruise ship comparison · Updated April 2026
Norwegian Breakaway is the larger vessel at 145,655 GT — 10% more than Costa Diadema's 132,500 GT. Norwegian Breakaway edges ahead in service with a passenger-to-crew ratio of 2.4:1, meaning more crew per guest. Norwegian Breakaway accommodates 239 more guests (3,963 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
Norwegian Breakaway
Size
132,500 GT
145,655 GT
Passengers
3,724
3,963
Year Built
2014
2013
Crew Ratio
1:3.0
1:2.4
Space Ratio
35.6
36.8
Decks
—
—
Length
306m
324m
From Price
$1,997/pp
$867/pp
Comparison Verdict
Norwegian Breakaway is the larger vessel at 145,655 GT — 10% more than Costa Diadema's 132,500 GT. Norwegian Breakaway edges ahead in service with a passenger-to-crew ratio of 2.4:1, meaning more crew per guest. Norwegian Breakaway accommodates 239 more guests (3,963 vs 3,724), making it the larger resort-at-sea — Costa Diadema trades capacity for a more intimate atmosphere.
| Category | Winner |
|---|---|
| Size | Norwegian Breakaway |
| Capacity | Norwegian Breakaway |
| Modernity | Costa Diadema |
| Service | Norwegian Breakaway |
| Spaciousness | Norwegian Breakaway |
| Decks | Tie |
| Length | Norwegian Breakaway |
| Fleet Power | Norwegian Breakaway |
Bottom line: Norwegian Breakaway leads 6–1 across our categories — strongest in Size. Choose Norwegian Breakaway for overall superiority; pick Costa Diadema if Modernity matter more to you.
Which Ship Is Right for You?
Choose Norwegian Breakaway if...
- Size matters to you (145,655 GT)
- More onboard variety (3,963 guests)
- Better service ratio (2.4:1 crew ratio)
- More space per guest (36.8 GT/pax)
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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.
