Costa Diadema

Number of Guests4947
Number of Crew1253
Length in metres306

Costa Diadema, launched in 2014, is built for relaxation and fun with lots of on-board activities, scintillating bars, gourmet restaurants and the spa area.

Among the special features not to be missed: an entire deck dedicated to children with castle and pirate galleon and the terrace on deck 5 for strolling and enjoying an aperitif at sunset: a real treat for holidaying in perfect Italian style. The cabins aboard our Flagship are elegant, well-appointed and spacious for up to five guests. At any time of the day or night you'll be spoilt for choice on what to do: sports, games, a large three-story theatre that welcomes international artists, and you too can take to the stage with Tu sì que Vales... and then the Aperol Spritz Bar for a cocktail before dancing the night away at the disco, a games room for returning to your childhood and a real German pub. We look forward to welcoming you on board. 

Life on board

Life on board

Whatever your dream holiday, a Costa Cruise has deals and activities for everyone. Board and discover everything!

Aperol Spritz Bar

for a fee
casual
An Aperol Spritz is an invitation to smile for the day in an atmosphere of serenity, an expression of joy on your Costa holiday.

Teppanyaki Restaurant

for a fee
casual
Why not spend an alternative night in a cosy Oriental environment and closely observe the craftsmanship of Japanese chefs.

Samsara Restaurant

for a fee
casual
Where the Pacific Ocean and the Mediterranean meet, we savour Pacific fusion cuisine in a menu full of taste and innovation.

Poretti Pub

for a fee
casual

A toast with a special beer to make your trip with Costa Cruises even more exciting!

Wine shop and wine bars

for a fee
casual
The tastiest way to start the night on a Costa ship? A good glass of red or white wine from our wine shops and bars.

Shopping

for a fee
casual

You can purchase beautiful gifts on board and everything else you may need for your cruise. 

Amarillo Ice Cream & Chocolate Shop

for a fee
casual
Care for a creamy homemade ice cream or some delicious chocolate praline? No one can resist the delicacies of the Amarillo Ice Cream Shop.

Cabins and suites

Inside

An inexpensive way to enjoy all the comforts of a luxurious space.

Outside

With large windows or portholes for admiring the panorama.

Balcony

An elegant cabin plus a direct sea view from a private balcony.

Suites

Wide open spaces, top service and attention to detail. Next level quality.

Interactive ship maps

Browse the decks and see all the rooms on the ship

Costa signs its ships

A new style for the whole fleet.

Special offers