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Costa Diadema

Rating: 4.5
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Costa Diadema Facts: General | Staterooms | Activities
Dream Class
2014
133,019
3,724
4,947
Italy
1,253
1,004 feet
158 feet
14
20.0 knots
22.5 knots
110/220 AC
1,862
64
756
346
696
21
Yes
No
Yes
No
Yes
No
No
Assigned

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Overview

Costa Diadema

Graced with royalty-themed artwork and 15 decks of endless delight, Costa Diadema is the crown jewel of the Costa Cruises fleet. Launched in November of 2014, the 133,019-ton Costa Diadema is the largest ship to sail for the Italian cruise line. This cruise ship sails in the Western Mediterranean, Europe, South America, Transatlantic, and offers other outstanding itineraries. When sailing aboard this vessel, you are certain to enjoy a vacation that is a The Spa aboard this ship is the largest in the fleet. cut above the rest. Costa Diadema takes the Costa tradition of fine food and service and brings it to a whole new grand level.

Dining Options

Dining aboard Costa Diadema is certain to captivate your senses. This ship features 8 restaurants and 11 bars where you can indulge in the finest foods, ales, wines and spirits in the Mediterranean. Among the main restaurants, which are complimentary, include:

  • Florentino Restaurant;
  • Adularia Restaurant;
  • Corona Blu Restaurant (a buffet);
  • There's also a small poolside buffet/grill.

There are a few dining options that require an additional charge and/or reservation:

  • Pizzeria Pummid’Oro;
  • Teppanyaki Restaurant;
    • Friends relaxing in the Spa.
  • Club Diadema Restaurant;
  • Archipelago Restaurant.

Activities & Entertainment

Costa Diadema has a spectacular assortment of onboard entertainment:

  • Put yourself in the seat of a racecar driver with the technologically-advanced Grand Pix simulator;
  • Rock out at the Country Rock Club;
  • Immerse yourself right in the action at the 4D Cinema;
  • Dance the night away at the onboard Disco.

Other entertainment options include a three-story theater, beer garden, two-story game area with video games and laser tag, a large casino, and a library/internet center.

Costa Diadema makes it easy to spend time simply relaxing. This ship has a total of 8 soothing hot tubs and 3 pools, one of which has a retractable roof, allowing for year-round swimming. There are also many opportunities for children to enjoy themselves as well. Youths will love being able to play at Squok Club, which features a castle and pirate ship, kiddie pool, and numerous fun activities such as arts and crafts and treasure hunts. Teens can hang out at Teen Zone, where they can engage in fun activities suited for older children, such as dancing and video games.

Your dream vacation is just one click or call away. Don’t miss out on the exclusive savings and limited-time deals you’ll get by booking with us. Contact us now to start instantly saving on your next voyage aboard Costa Diadema.

Ship Highlights

Solemio Wellness Center

Sailing onboard Costa Diadema means that you have the opportunity to indulge yourself in the luxurious services of the largest Solemio Wellness Center in Costa’s fleet. It occupies four decks! Soak in the soothing essence of a relaxing massage, feel your skin glow with a rejuvenating facial or savor the refreshing effects of a nourishing body wrap. Afterwards, enjoy unwinding in the sauna, Turkish bath, or calming solarium. Visit the beauty salon to top off your refreshing experience with a makeover in the salon or a round of training in the fitness center.

Emerald Theater

Sit back and relax to a variety of Enjoy a live performance in the beautiful Emerald Theater. entertaining shows and performances in the three-level Emerald Theater, where you can enjoy a different show each day of your Costa Diadema cruise. Just some of the types of performances that you may get to see include singers, dancers, acrobats, magicians, and comedians. For an even more exhilarating experience, visit the ship’s 4D cinema, where you can enjoy 4D movies with magnetizing effects.

Golden Jubilee Casino

If you’re in the mood to test your luck while on a Costa Diadema cruise, you can do so at the ship’s large casino. Among the games available at this venue are blackjack, poker, roulette, craps and a variety of slot machines.

Youth Programs

Costa Cruises are family-friendly and provide excellent entertainment options targeted specifically to youths and teens. The Squok Club and Teen Zone are the two youth clubs onboard, featuring TVs and comfortable seating with a nearby outdoor playground and children’s pool. There is also specialized programming for kids, broken up into 4 age groups (3 to 6, 7 to 11, 12 to 14, and 15 to 17). Some activities may include arts and crafts, dancing, sports, video gaming, and parties.

Your ticket to relaxation and rejuvenation awaits, as do big savings and exclusive offers. Call us now - we’re ready to assist you today!

Have a question about Costa Diadema? See the Costa Diadema FAQs.

Destination Calendar
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Pricing listed above is per person, based on double occupancy in the least expensive accommodations available, is subject to change, and may not reflect the most recent pricing (as pricing gets updated throughout the day). Prices include Required Cruise Fees & Expenses, as well as Government Taxes & Fees. Prices may not reflect discounts and special promotions that you may qualify for. Go to the Category selection step of the online booking process to view the live pricing and latest offers.
Ports

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Accommodations

Costa Diadema Staterooms

Stateroom Guide at a Glance

Every type of stateroom on Costa Diadema, with its booking categories, size and where it is on the ship. Select a deck number to open that deck plan.

Stateroom types on Costa Diadema
Stateroom type Categories Approx. size Where on the ship
Grand Suite with Ocean View Balcony GS 456 sq. ft. including balcony Mid-ship, deck 7; forward, deck 11
Suite with Ocean View Balcony S 337 sq. ft. including balcony Forward and mid-ship, deck 7; forward, decks 9, 11 and 12
Mini Suite with Ocean View Balcony MS 286 sq. ft. including balcony Aft, decks 6 to 8
Balcony B4 B3 B2 B1 151 to 183 sq. ft. including balcony Throughout the ship, decks 2 and 6 to 12
Oceanview E2 E1 151 to 215 sq. ft. Forward, mid-ship and aft, deck 1; forward and aft, deck 2; forward, decks 6, 7, 9 and 10
Inside I4 I3 I2 I1 108 to 183 sq. ft. Throughout the ship, decks 1, 2 and 6 to 12

Sizes are approximate, and some staterooms in a category differ in size or layout.

Filter Room Types:
All staterooms and suites aboard Costa Diadema include the following:
  • Adjustable air-conditioning with thermostat
  • 40" flat screen TV
  • Hair Dryer
  • Safe
  • Dorelan mattresses and pillows
  • Private bathroom with a shower
  • Room service (additional charges apply)
  • Wi-Fi (additional charges apply)
  • Phone with "Call me" service
  • Pool towel

Suite

If you’re a traveler who wants the best of the best, then booking a Suite aboard Costa Diadema is the way to go. From the most living and storage space to extra perks, larger bathrooms, and faster, more personalized service, Suites have everything you need for an unforgettable experience. They are especially valuable during longer cruises when you can enjoy the space and amenities for longer.

Grand Suite with Ocean View Balcony

Category Approx. size Location
GS 456 sq. ft. Conde (Deck 7) (mid-ship)Timur (Deck 11) (forward)

Sizes include the balcony.

Grand Suite with Ocean View Balcony - Bedroom

Grand Suites with Ocean View Balcony are the most luxurious accommodations aboard Costa Diadema. They are approximately 456 sq. ft., including a private balcony, and feature:

  • Private butler;
  • Dedicated restaurant;
  • Welcome bottle of sparkling wine;
  • Floor-to-ceiling windows that open up to a spacious private veranda;
  • Two twin beds (can convert to a Queen);
  • Dorelan mattresses and pillows;
  • Private bathroom with a whirlpool bath and shower;
  • Hairdryer;
  • Bathrobe and slippers;
  • Pool towel;
  • Flat screen TV;
  • Safe;
  • Phone with “Call me” service;
  • Adjustable air conditioning.

Suite with Ocean View Balcony

Category Approx. size Location
S 337 sq. ft. Conde (Deck 7) (forward and mid-ship)Bizantino (Deck 9), Timur (Deck 11) and Stella D'Africa (Deck 12) (forward)

Sizes include the balcony.

Suite with Ocean View Balcony - Bedroom

Suites with Ocean View Balcony are luxury accommodations aboard Costa Diadema of about 337 sq. ft., including a balcony. They feature:

  • Private butler;
  • Dedicated restaurant;
  • Welcome bottle of sparkling wine;
  • Floor-to-ceiling windows that open up to a spacious private veranda;
  • Two twin beds (can convert to a Queen);
  • Dorelan mattresses and pillows;
  • Private bathroom with a whirlpool bath and shower;
  • Hairdryer;
  • Bathrobe and slippers;
  • Pool towel;
  • Flat screen TV;
  • Safe;
  • Phone with “Call me” service;
  • Adjustable air conditioning.

Mini Suite with Ocean View Balcony

Category Approx. size Location
MS 286 sq. ft. Braganza (Deck 6), Conde (Deck 7) and Star of India (Deck 8) (aft)

Sizes include the balcony.

Mini Suite with Ocean View Balcony - Bedroom

Mini Suite with Ocean View Balcony are beautiful accommodations board Costa Diadema, featuring:

  • Private butler;
  • Dedicated restaurant;
  • Welcome bottle of sparkling wine;
  • Floor-to-ceiling windows that open up to a spacious private veranda;
  • Two twin beds (can convert to a Queen);
  • Dorelan mattresses and pillows;
  • Private bathroom with a whirlpool bath and shower;
  • Hairdryer;
  • Bathrobe and slippers;
  • Pool towel;
  • Flat screen TV;
  • Safe;
  • Phone with “Call me” service;
  • Adjustable air conditioning.

Balcony

Balcony staterooms onboard Costa Diadema are smaller than suites but each include a private veranda for relaxing and enjoying stunning views of the landscape. They also include the Brindiamo Beverage Package. Balcony staterooms are more expensive than Oceanviews, but provide a much more elevated experience. In some cases (depending on the ship and category) you’ll get extra living and storage space, plus amenities that may not fit in smaller accommodations.

Balcony staterooms are perfect for travelers who wish to spend a decent amount of time relaxing in privacy. Balconies bring you closer to the passing scenery and wildlife, providing an up close and personal view.

They also tend to be closer to public areas, which means you won’t need to go far to change or drop something to your room.

Balcony

Category Approx. size Location
B4 151 to 183 sq. ft. Star of India (Deck 8) and Bizantino (Deck 9) (forward, mid-ship and aft)Hortensia (Deck 10) (forward and mid-ship)Timur (Deck 11) and Stella D'Africa (Deck 12) (forward)
B3 151 to 183 sq. ft. Braganza (Deck 6), Conde (Deck 7), Star of India (Deck 8) and Bizantino (Deck 9) (forward, mid-ship and aft)Hortensia (Deck 10) (forward and mid-ship)Timur (Deck 11) and Stella D'Africa (Deck 12) (forward)
B2 151 to 172 sq. ft. Braganza (Deck 6) and Conde (Deck 7) (forward, mid-ship and aft)
B1 151 sq. ft. Sara (Deck 2) (mid-ship)

Sizes include the balcony.

Balcony - Bedroom

Balcony staterooms are located in the best areas of Costa Diadema. They are 150.7 to 183 sq. ft., including a private balcony, and feature:

  • Spacious balcony;
  • Two twin beds (can convert to a Queen);
  • Dorelan mattresses and pillows;
  • Private bathroom with a shower;
  • Bathrobe and slippers;
  • Hairdryer;
  • Pool towel;
  • Flat screen TV;
  • Safe;
  • Phone with “Call me” service;
  • Adjustable air conditioning.

Oceanview

Oceanview staterooms onboard Costa Diadema are slightly more spacious than inside staterooms and feature a large picture window. They also include the Brindiamo Beverage Package. For a budget-friendly stateroom that still provides a view of the outside, you might consider booking an Oceanview stateroom. These staterooms are generally similar in size to balcony staterooms.

Oceanview

Category Approx. size Location
E2 151 to 215 sq. ft. Excelsior (Deck 1) (forward, mid-ship and aft)Sara (Deck 2) (forward and aft)Braganza (Deck 6), Conde (Deck 7), Bizantino (Deck 9) and Hortensia (Deck 10) (forward)
E1 151 to 172 sq. ft. Excelsior (Deck 1) (forward, mid-ship and aft)Sara (Deck 2) (forward and aft)
Oceanview - Bedroom

Oceanview staterooms aboard Costa Diadema are 150.7 to 215 sq. ft. They have a nice big window offering picturesque views, and feature:

  • Large picture window (porthole);
  • Two twin beds (can convert to a Queen);
  • Dorelan mattresses and pillows;
  • Private bathroom with a shower;
  • Bathrobe and slippers;
  • Hairdryer;
  • Pool towel;
  • Flat screen TV;
  • Safe;
  • Phone with “Call me” service;
  • Adjustable air conditioning.

Inside

If you’re a traveler who wants to have more spending money for excursions, cocktails, spa treatments, or specialty dining, then an Inside stateroom onboard Costa Diadema is a fabulous option, as it is usually the least expensive fare. They also include the Brindiamo Beverage Package. Inside staterooms do not have a window.

Inside

Category Approx. size Location
I4 108 to 183 sq. ft. Braganza (Deck 6) (mid-ship)Star of India (Deck 8) and Bizantino (Deck 9) (forward, mid-ship and aft)Hortensia (Deck 10) (forward and mid-ship)Timur (Deck 11) and Stella D'Africa (Deck 12) (forward)
I3 108 to 140 sq. ft. Braganza (Deck 6), Conde (Deck 7), Star of India (Deck 8) and Bizantino (Deck 9) (forward, mid-ship and aft)Hortensia (Deck 10) (forward and mid-ship)Timur (Deck 11) and Stella D'Africa (Deck 12) (forward)
I2 108 to 172 sq. ft. Excelsior (Deck 1) and Sara (Deck 2) (mid-ship)Braganza (Deck 6) and Conde (Deck 7) (forward and aft)
I1 129 sq. ft. Excelsior (Deck 1) and Sara (Deck 2) (forward and aft)
Inside - Bedroom

Inside staterooms have the most affordable prices aboard Costa Diadema. They have no window, are 107.6 to 183 sq. ft., and feature:

  • Two twin beds (can convert to a Queen);
  • Dorelan mattresses and pillows;
  • Private bathroom with a shower;
  • Bathrobe and slippers;
  • Hairdryer;
  • Pool towel;
  • Flat screen TV;
  • Safe;
  • Phone with “Call me” service;
  • Adjustable air conditioning.

Back to the stateroom guide

Deck Plans

Costa Diadema Deck Plans

Excelsior (Deck 1)

Where Excelsior (Deck 1) is on Costa Diadema

Accommodation Categories

Deck Plan Key

  • Single staterooms
  • Double sofa bed
  • Cannot be converted into a double
  • 1 upper berth
  • Connecting staterooms
  • Elevator
  • Stateroom for disabled guests
  • Single sofa bed
  • 2 low beds that cannot be converted into a double
Excelsior (Deck 1) deck plan for Costa Diadema
Excelsior (Deck 1), Costa Diadema
FAQs

Costa Diadema FAQs

Quick answers about Costa Diadema, from the details on this page.

When was Costa Diadema built?

Costa Diadema entered service in 2014.

How many passengers does Costa Diadema carry?

Costa Diadema carries 3,724 guests at double occupancy, and up to 4,947 when every berth is filled. A crew of 1,253 looks after them, about one crew member for every 3 guests.

How big is Costa Diadema?

Costa Diadema measures 133,019 gross tons, 1,004 feet long and 158 feet wide. Its deck plans show 14 passenger decks.

What class of ship is Costa Diadema?

Costa Diadema is a Dream Class ship.

What kinds of staterooms are on Costa Diadema?

Costa Diadema has 1,862 staterooms in 13 booking categories, grouped into four types: Suite, Balcony, Oceanview and Inside. The Accommodations tab lists every category with its size and the decks it is on.

Which staterooms on Costa Diadema have a balcony?

820 staterooms on Costa Diadema have a private balcony. Every stateroom in the Suite and Balcony types has one.

Does Costa Diadema have accessible staterooms?

Yes. Costa Diadema has 21 accessible staterooms across its categories.

How many decks does Costa Diadema have?

Costa Diadema has 14 passenger decks, numbered 1 to 15. There is no Deck 13. Staterooms are on decks 1, 2 and 6 to 12.

What dining times does Costa Diadema offer?

Costa Diadema offers Assigned dining in its main dining room.

What kind of electrical outlets are in the staterooms on Costa Diadema?

The cruise line lists the stateroom power as 110/220 AC. That includes the 110-volt power used in the United States.

What is there to do on board Costa Diadema?

Features on board Costa Diadema include a casino, a water slide and an outdoor movie screen.

Where is Costa Diadema registered?

Costa Diadema sails under the flag of Italy.

Photos provided are not guaranteed to accurately represent the room or space listed, and may be of a similar ship. All stateroom descriptions are subject to change. Some staterooms in the same category may have different furniture arrangements or be a different size than listed. Deck plans are subject to change. Please verify all information directly with the cruise line. We reserve the right to correct errors.