What I would actually book
A standard Balcony cabin is the sensible default — the largest category on the ship at roughly 522–524 cabins. If daylight matters on a budget, this ship’s 236-cabin Oceanview category is a real, usable option. Families and anyone wanting more space should price a Mini-Suite before assuming they need a full suite.
Balcony
Roughly 522–524 cabins, the largest category on the ship, per Princess’s current fact sheet.
Mini-Suite
Roughly 184–186 cabins — price this before assuming you need a full suite.
Grand Suite
The top of this ship’s suite ladder — just 1 cabin.
1,353 total
Per Princess’s current fact sheet, matched by independent secondary sources at the same total (sub-category counts differ by roughly 2 cabins per category).
27 total
Per Princess’s current fact sheet, independently matched by CruiseMapper.
Support-beam view obstruction on aft Vista Suites, and this ship’s enlarged Gem-class funnel design
The most consistently documented location patterns for this ship — see the location section below.
The category ladder, bottom to top
Diamond Princess runs Interior, a genuine Oceanview category, Balcony, Mini-Suite (including a Reserve Collection tier), and six named suite grades. No Deluxe Balcony tier exists on this ship.
| Family | Category | Approx. size | Notes |
|---|---|---|---|
| Interior | Interior (IA–IF) | ~150–180 sq. ft. | 377 cabins per Princess’s fact sheet (379 per independent secondary sources — a roughly 2-cabin gap, not a real conflict) |
| Oceanview | Oceanview (O5, OC, OF, plus obstructed OV/OW/OY/OZ) | ~150–180 sq. ft. | 236 cabins, per Princess’s current fact sheet |
| Balcony | Balcony (B2, B4, BA–BF) | ~185–222 sq. ft. + balcony | 524 cabins per Princess’s fact sheet (522 per secondary sources) |
| Mini-Suite | Mini-Suite (M1, MB, MD, ME) | ~277 sq. ft. + balcony | 184 cabins per Princess’s fact sheet (186 per secondary sources); a subset carries the Reserve Collection Mini-Suite designation, concentrated on Decks 8–9 |
| Suite | Grand Suite (1), Owner’s Suite (1), Penthouse Suite (15), Premium Suite (5), Vista Suite (6), Family Suite (2) | 613 sq. ft. (Grand) down to ~525–548 sq. ft. (Vista) | Independently confirmed grade names and per-grade counts, from cruisedeckplans.com and Cruise Critic |
Princess’s own fact sheet and independent secondary sources agree on the 1,353 grand total but differ by roughly 2 cabins per category (Interior 377 vs. 379, Balcony 524 vs. 522, Mini-Suite 184 vs. 186, Suite 32 vs. 30). This looks like a minor classification difference — possibly how a couple of convertible or connecting cabins get bucketed — rather than a real disagreement about the ship. We present Princess’s own figures as primary.
Vista Suites on the aft of this ship (Decks 8–10) are reported to have a support beam partially obstructing the view in some cabins — worth asking about directly if you’re booking this grade specifically.
The value baseline on this ship
Interior cabins run roughly 150–180 sq. ft. — genuinely windowless. This ship carries roughly 377–379 of them, with a real Oceanview category as the next rung up.
This ship’s 236-cabin Oceanview category is a real, usable option — not a niche afterthought.
A genuinely sizable category
Oceanview on Diamond Princess runs roughly 150–180 sq. ft., a window with no private balcony — 236 cabins. Obstructed-view grades are priced lower for a lifeboat or machinery-blocked view.
With 236 cabins available, Oceanview is a genuine budget option here if a balcony isn’t essential.
The default choice on this ship
Balcony is the largest category on this ship at roughly 522–524 cabins, running roughly 185–222 sq. ft. plus a balcony. No separate Deluxe Balcony tier exists here.
A sitting-area step up, concentrated on Decks 8–9 for Reserve Collection
Mini-Suite runs roughly 277 sq. ft. plus a balcony, adding a sitting area over a Balcony cabin — roughly 184–186 cabins on this ship. A subset (secondary-sourced at roughly 32 cabins on Decks 8–9) carries the Reserve Collection Mini-Suite designation.
A standard Mini-Suite
The sitting-area upgrade over a Balcony cabin, at a fare below the suite tiers.
A Reserve Collection Mini-Suite specifically
The same physical footprint, bundled with Reserve Collection perks — confirm the specific cabin before booking if the perks are the draw.
Six named grades, independently confirmed per-grade counts
Diamond Princess is one of the better-documented ships in this class for suite detail: Grand Suite (1 cabin, Deck 11 Baja), Owner’s Suite (1 cabin, roughly 692 sq. ft. including balcony), Penthouse Suite (15 cabins, roughly 555 sq. ft.), Premium Suite (5 cabins, roughly 705 sq. ft., forward), Vista Suite (6 cabins, roughly 525–548 sq. ft., aft Decks 8–10), and a two-bedroom Family Suite (2 cabins, Deck 9 Dolphin). Reserve Collection is the suite-tier program on this ship: priority embarkation and disembarkation, welcome wine, evening canapés on request, upgraded bathrobes, and a Reserve Dining area inside the main dining room.
Penthouse Suite specifically
The largest suite inventory on this ship at 15 cabins — the most realistic suite booking if you want the Reserve Collection experience without chasing one of the very limited top grades.
Grand Suite or Owner’s Suite
Just 1 cabin each — the top of this ship’s ladder. Book well ahead if either is the goal.
Some aft Vista Suites (Decks 8–10) are reported to have a support beam partially obstructing the view — ask directly about the specific cabin before booking this grade.
A clean, corroborated figure
Princess’s own current fact sheet lists 27 wheelchair-accessible staterooms on Diamond Princess, independently matched by CruiseMapper — a clean, corroborated figure with no conflict found.
Confirm the exact accessible cabin number, category and door width directly with Princess or a travel advisor well ahead of your sailing.
Single-source guidance — treat cabin numbers as illustrative
Location research for this ship comes from a single third-party cabin-selection blog we could not independently cross-verify against a second source in the time available.
Cabins under the Lido Deck (cited range roughly A310–A751)
Deck-chair dragging and late-night crew cleaning noise, per generic guidance.
Cabins adjacent to self-service laundromats (specific numbers cited: D226, D229, C610, C611, B708, B711)
Machine noise, vibration and elevator foot traffic.
Cabins near crew stairwells (cited: P200-201, E100-103, C101-102, D102-105)
Early-morning crew activity noise.
Forward balconies (cited: L200-201, A104, B104-107, C104-107, D104-105)
Reportedly too windy to comfortably use underway.
Higher forward/aft cabins generally
More perceived motion in rough seas — mid-ship lower decks recommended for motion sensitivity.
Upper aft cabins (cited: A744/746/749-751, B750-753)
Some risk of soot given this ship’s enlarged Gem-class funnel design.
These specific cabin numbers come from a single third-party cabin-selection blog rather than Princess’s own documentation, and we could not corroborate them against a second independent source. Treat the numbers as plausible and worth checking against the current deck plan, not as independently confirmed.
What does the next dollar actually buy?
A window with no balcony, at real scale on this ship — 236 cabins to choose from.
Private outdoor space — the upgrade most travelers say is worth paying for.
A genuine sitting-area upgrade, and — if it’s the Reserve Collection grade specifically, concentrated on Decks 8–9 — the most accessible route into Reserve Collection perks.
The largest suite inventory on this ship (15 cabins) and the most realistic route into Reserve Collection’s full-suite perks.
The top of this ship’s ladder — just 1 cabin each, so book well ahead.
Compare the ship, not just the class
Diamond Princess cabin questions
What is the best cabin on Diamond Princess?
A standard Balcony cabin is the easiest right answer for most travelers — the largest category on the ship. This ship’s 236-cabin Oceanview category is also a genuinely usable budget option if a balcony isn’t essential.
How many staterooms does Diamond Princess have?
1,353 total, per Princess’s current fact sheet and independently matched by secondary sources — 377 interior, 236 oceanview, 524 balcony, 184 mini-suite, 32 suites (secondary sources give slightly different sub-category counts, off by roughly 2 cabins per category, though the grand total agrees).
Is Diamond Princess the same as Grand Princess?
No. Diamond Princess is a "Gem class" ship — built by Mitsubishi Heavy Industries in Nagasaki, Japan, rather than by Fincantieri in Italy like Grand Princess. She has a larger funnel and a different nightclub placement as a result.
How many wheelchair-accessible cabins does Diamond Princess have?
27, per Princess’s current fact sheet, independently matched by CruiseMapper — a clean, corroborated figure.
What is the Izumi Japanese Bath?
A large Japanese-style bath area — Princess describes it as the largest of its kind at sea — with segregated bathing areas, saunas and steam rooms, reflecting this ship’s Japan-market design alongside Makoto Ocean, the specialty sushi restaurant that replaced the former Kai Sushi venue in a late-2025 rollout.
Where can I find the official Diamond Princess deck plan?
Princess publishes the current deck plan for this ship at princess.com/deckPlans.do?shipCode=DI — use it to confirm the exact cabin number, deck and any obstruction before booking. A direct link is included above.
Original research — verify specifics before booking
This page is Seabound’s own research into Princess’s published stateroom data, cross-checked against third-party cruise sources current as of August 2026 — it isn’t a locked or pre-audited document. Diamond Princess had some of the cleaner, better-corroborated source data in this class.
Sub-category cabin counts (Interior, Balcony, Mini-Suite, Suite) differ by roughly 2 cabins between Princess’s fact sheet and independent secondary sources, though the 1,353 grand total agrees across sources.
Makoto Ocean’s exact opening date is reported inconsistently between sources (some cite a Fall 2025 rollout, others a January 2026 reservations launch) — Princess’s own press materials and multiple trade outlets confirm the venue replaced Kai Sushi, but we did not chase the exact date to the day.
Location detail comes from a single third-party cabin-selection blog we could not corroborate against a second source in this research pass.
The named-tier category structure, the genuine 236-cabin Oceanview category, the Mitsubishi/Nagasaki build origin, Reserve Collection’s role as this ship’s suite-tier program, the six named suite grades with per-grade counts, and Makoto Ocean’s replacement of Kai Sushi are each confirmed on Princess’s own current published materials or well-corroborated secondary sources.
The 1,353 stateroom total, the accessible-cabin count, and the suite grade structure are each corroborated by more than one independent source.
Which category is the better buy for a given traveler type, and what each rung of the upgrade ladder is actually purchasing.