Costa Diadema
Costa

Costa Diadema

67
SCORE
Pools & Relaxation 87Entertainment 78Activities & Thrills 67Dining 62Space & Comfort 38Value / Cost 38
Line
Costa
Built
2014
Guests
4,947
Tonnage
133,019 tons
Length
305.7 m
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What We Like
+Strong Pools & Relaxation — scores 87/100
+Strong Entertainment — scores 78/100
Worth Knowing
Space & Comfort is a relative weak point at 38/100
Value / Cost is a relative weak point at 38/100
Fewer crew per guest — about 3 guests to each crew member
Daily gratuities are expected on top of the fare

General

Cruise Line
Costa
Ship Name
Diadema
Maiden voyage
1 November 2014

Physical

Year Built
2014
Refurbished
The year of the ship's most recent major refit or renovation.
2020
Builder
Fincantieri
Gross Tonnage
A measure of a ship's enclosed volume, not its weight. Higher usually means more decks, space and amenities.
133,019 tons2937250800
Length
Overall length of the hull from bow to stern.
305.7 m88365
Width/Beam
The ship's width at its widest point. A wider hull is steadier but limits which ports and canals it can use.
37.2 m
Ship Within a Ship
Samsara Spa area (spans decks 14-15, with dedicated pool, Jacuzzis, thalassotherapy pool, restaurant, and lounge for spa-cabin guests)
Total decks
Total number of decks, including crew-only and service decks.
14
Passenger Decks
14
Speed
Cruising speed in knots (nautical miles per hour). One knot is about 1.15 mph.
22.5 knots

Passengers and Crew

Crew
1,253
Passenger to Crew Ratio
Guests per crew member. Lower means more staff per passenger, which usually means more attentive service.
314
Total Cabins
1,886
Single Occupancy Cabins
Whether the ship has cabins built for solo travellers (often without a single supplement).
No
Wheelchair-Accessible Cabins
8
Passenger Capacity
The maximum number of guests the ship can carry at full occupancy.
4,947487662
Space Ratio (tons of ship per passenger)
Gross tonnage divided by passenger capacity — a rough 'spaciousness' gauge. Higher means more room per guest.
26.8892128

Amenities

Restaurants
8 restaurants and snack bars, including Fiorentino (main dining), La Piazza/Piazza Pizza, Corona Blu, Sissi Restaurant, plus specialty venues Club Diadema (fine dining), Tavola Teppanyaki, and Samsara Restaurant
Restaurants - Paid
4
Restaurants - Included
3
Onboard Currency
The currency used for onboard purchases and billing.
Euro
Total Pools
3
- Pools - General Access
3
- Pools - Adults Only
0
- Pools - Exclusive
3
Outdoor Pools
3
Water Playground/Splash Park
No
Kiddie/Splash Pool
Yes
Total Hot Tubs
8
- Hot Tubs - General Access
8
- Hot Tubs - Adults Only
8
- Hot Tubs - Exclusive
8
WiFi
Yes
Internet Center
Yes
Cell Phone Service
Yes
Bars/Lounges
11
Beauty Salon/Barber Shop
Yes
Casino
Yes
Chapel
No
Night Club
Yes
Laundromats (self service)
No
Laundry/Dry Cleaning
Yes
Library
Yes
Movie Theatre
Yes
Outdoor Movie Screen
No
Onboard Weddings
Yes
Spa
Yes
Video Arcade
Yes
Basketball Court
Yes
Tennis Court
Yes
Fitness Center
Yes
Ice Skating Rink
No
Jogging Track
Yes
Mini-Golf Course
No
Rock Climbing Wall
No
Water Slide
No
Water Sports Platform
No
24-Hour Room Service
Yes
Babysitting
Yes
Children's Playroom
Yes
Supervised Youth Program
Yes
Teen Center
Yes
Kosher Meals
No
Adult Only Relaxation Area
Yes
Special Amenities
4D cinema hall, Samsara Spa across multiple decks with thalassotherapy pool, casino, cigar lounge, hair salon, video arcade, teen lounge, jogging track, outdoor promenade over 500m long

Costs and Gratuities

Tip added to drinks & services
The automatic gratuity percentage added to bar tabs and paid services.
15%
Tipping Expected?
Yes

Registry & Identifiers

Call sign
The ship's unique radio identifier used in maritime communications.
IBCX
IMO number
A permanent 7-digit ID assigned to the hull for life, even if the ship is later renamed or sold.
9636888
MMSI number
A 9-digit radio ID broadcast by the ship's transponder for tracking and communications.
247353700
Port of registry
The ship's legal home port and country of registration — its 'flag'.
Italy, Genoa
66.6
SCORE /100
Overall score for this persona, built from the section scores below.
Pools & Relaxation 87
Entertainment 78
Activities & Thrills 67
Dining 62
Space & Comfort 38
Value / Cost 38