September 2, 2026
10-Night Transatlantic Cruise
Departing from Hamburg
From
$1,379
Price / day
$138
Queen Mary 2|Diamond Princess
Queen Mary 2 vs Diamond Princess
Compare ship age, size, passenger capacity, itineraries and upcoming cruise prices.
VS
Newer Ship
Both ships are the same
Lower Price Per Day
Queen Mary 2
$162 / day
$2 less per day
More Spacious Ship
Queen Mary 2
57 GT per guest
Gross tonnage divided by passenger capacity
Queen Mary 2 vs Diamond Princess: Quick Comparison
Queen Mary 2 and Diamond Princess both entered service in 2004. Queen Mary 2 is approximately 29% larger by gross tonnage at 149,215 GT. Diamond Princess also carries 50 more passengers. Queen Mary 2 has upcoming sailings in Transatlantic, while Diamond Princess has sailings in Japan. Based on the upcoming cruises currently displayed, Queen Mary 2 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 | Queen Mary 2 | Diamond Princess |
|---|---|---|
| Year Built | 2004 | 2004 |
| Gross Tonnage | 149,215 GT | 115,906 GT |
| Passenger Capacity | 2,620 | 2,670 |
| Space per Passenger | 57 GT | 43.4 GT |
| Length | 345.03 m | 290 m |
| Decks | — | — |
| Cabins | — | — |
Key Differences: Queen Mary 2 vs Diamond Princess
Age
Queen Mary 2 and Diamond Princess were both built in 2004.
Size
At 149,215 GT, Queen Mary 2 is approximately 29% larger by gross tonnage than Diamond Princess at 115,906 GT.
Passenger capacity
Diamond Princess carries up to 2,670 passengers compared with 2,620 aboard Queen Mary 2, a difference of 50 passengers.
Passenger space
Queen Mary 2 offers more space per passenger: 57 GT per guest, compared with 43.4 aboard Diamond Princess. A higher passenger space ratio generally means less crowding in public areas.
Itineraries
The upcoming sailings shown for Queen Mary 2 (Transatlantic) and Diamond Princess (Japan) currently cover different regions or departure ports.
Price
Among the upcoming sailings currently displayed, Queen Mary 2 has the lower average starting price per day at $162 per day.
Compare Ports of Call
Queen Mary 2
Westbound Transatlantic Crossing, 10 Nights
- Departure Port
- Hamburg
- Region
- Transatlantic
- Nights
- 10
- Round Trip
- No
- Day 1 · Sep 2, 2026Hamburg
- Day 2 · Sep 3, 2026At Sea
- Day 3 · Sep 4, 2026Zeebrugge
- Day 4 · Sep 5, 2026Southampton
- Day 5 · Sep 6, 2026At Sea
- Day 6 · Sep 7, 2026At Sea
- Day 7 · Sep 8, 2026At Sea
- Day 8 · Sep 9, 2026At Sea
- Day 9 · Sep 10, 2026At Sea
- Day 10 · Sep 11, 2026At Sea
- Day 11 · Sep 12, 2026New York
Dates are estimates based on the published departure date.
Diamond Princess
Japan Explorer
- Departure Port
- Tokyo
- Region
- Japan
- Nights
- 9
- Round Trip
- Yes
- Day 1 · Oct 1, 2026Tokyo
- Day 2 · Oct 2, 2026Toba
- Day 3 · Oct 3, 2026Osaka
- Day 4 · Oct 4, 2026Kochi
- Day 5 · Oct 5, 2026Hiroshima
- Day 6 · Oct 6, 2026Kanmon Straits
- Day 7 · Oct 7, 2026Busan
- Day 8 · Oct 8, 2026Nagasaki
- Day 9 · Oct 9, 2026At Sea
- Day 10 · Oct 10, 2026Tokyo
Dates are estimates based on the published departure date.
Upcoming Cruises & Prices
Queen Mary 2
September 5, 2026
14-Night Transatlantic Cruise
Departing from Southampton
From
$2,599
Price / day
$186
Diamond Princess
October 1, 2026
9-Night Japan Cruise
Departing from Tokyo
From
$1,657
Price / day
$184
October 10, 2026
9-Night Japan Cruise
Departing from Tokyo
From
$1,296
Price / day
$144
Prices shown are starting fares and may change.
Which Ship Is Cheaper?
Queen Mary 2
Average
$162 / day
VS
Diamond Princess
Average
$164 / day
Queen Mary 2 has the lower price per day among the sailings shown
$162/day vs $164/day
About $2 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 Queen Mary 2 if…
- You prefer the larger ship by gross tonnage.
- 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 Transatlantic.
- Departing from Hamburg and Southampton works for your plans.
- The lower price per day among the sailings currently shown matters to you.
Choose Diamond Princess if…
- You do not mind sailing on a ship with a higher passenger capacity.
- You want to sail in Japan.
- Departing from Tokyo works for your plans.
Queen Mary 2 vs Diamond Princess: Final Comparison Summary
Newer
Both ships are the same
Bigger
Queen Mary 2
149,215 GT
29% larger by gross tonnage
Lower Price Per Day
Queen Mary 2
$162 / day
About $2 less per day
- Both ships were built in 2004.
- Queen Mary 2 is 29% larger by gross tonnage.
- Diamond Princess carries 50 more passengers.
- Queen Mary 2 offers more space per passenger (57 GT per guest).
Frequently Asked Questions
Which is bigger, Queen Mary 2 or Diamond Princess?
Queen Mary 2 is larger by gross tonnage. It measures approximately 149,215 GT compared with Diamond Princess at 115,906 GT.
Which ship carries more passengers?
Diamond Princess has a passenger capacity of approximately 2,670, compared with 2,620 for Queen Mary 2.
Which ship is more spacious, Queen Mary 2 or Diamond Princess?
Queen Mary 2 has the higher passenger space ratio at 57 GT per passenger, versus 43.4 for Diamond Princess. The ratio is gross tonnage divided by passenger capacity; a higher number means more ship space per guest.
Which ship is cheaper, Queen Mary 2 or Diamond Princess?
Among the upcoming sailings currently displayed, Queen Mary 2 has the lower average starting price per day at $162 per day versus $164 per day. Fares vary by itinerary, departure date, cabin type and availability.
Where does Queen Mary 2 sail?
The upcoming Queen Mary 2 sailings currently listed cover Transatlantic, departing from Hamburg and Southampton.
Where does Diamond Princess sail?
The upcoming Diamond Princess sailings currently listed cover Japan, departing from Tokyo.
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