Costa Diadema

Dubbed the “Queen of the Mediterranean” and named after the Italian word for tiara, Costa Diadema lives up to that name and more. Thousands of artworks by well-known and up and coming artists center on the theme of royalty, pulling inspiration from contemporary pop culture and traditional Italian Renaissance art. Fantastic hospitality, excellent cuisine and a wealth of entertainment will all showcase the best of Italy on board. Several restaurants offer diverse cuisine so there’s always a wide range for every taste. The Terrace is over 1,600 feet long and is lined with bars and restaurants. The Solemio Spa spreads across four whole levels and encompasses spa suites, a solarium, a Turkish bath and thalassotherapy pool, treatment rooms, a sauna and a fully equipped gym. Excitement waits around every corner with the three level theater, five live music venues, an expansive casino, video arcade and even a separate club and pool just for children. On Europe sailings that depart May through October and Caribbean sailings that depart December through March, Costa requires that at least one passenger in each cabin be 25 or older.

Ship Pictures
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Ship Statistics
Year Built 2014
Refurbished 2023
Tonnage 132,500 tons
Registry Italy
Length 1,004 feet
Beam 121 feet
Passenger Capacity 4,947
Crew Size 1,253
# of Inside Cabins 701
# of Outside Cabins 1,161
# of Cabins w/ Verandas 921
# of Suites 75
Max. Room Occupancy 4
Age Restrictions
One person must be 21 or older
Dining Options click here
Tipping Expected? Yes
Tipping Guidelines
$12.50 per guest, per day for cruises departing from the U.S. or Far East; €11 per guest, per day for cruises not departing from the U.S.; €11 per guest, per day for world cruises. All charges are automatically added to your onboard account. 15% tip included on beverage orders. The service fee for children between the ages 4 and 14 will be 50% less; no service fee for children under the age of 4. All service fees are mandatory and cannot be altered.
Onboard Currency US Dollar
Services & Amenities
Bars/Lounges 12
Beauty Salon/Barber Shop Yes
Casino Yes
Chapel No
Disco/Dancing Yes
Elevators Yes
Hot Tub 8
Cell Phone Service Yes
Internet Center Yes
Wireless Internet Access Yes
Laundromats (self service) No
Laundry/Dry Cleaning Yes
Library Yes
Movie Theatre Yes
Outdoor Movie Screen No
Onboard Weddings No
Shops Yes
Showroom Yes
Spa Yes
Video Arcade Yes
Fitness & Sports Facilities
Basketball Court No
Fitness Center Yes
Golf Driving Net No
Golf Simulator No
Ice Skating Rink No
Jogging Track Yes
Mini-Golf Course No
Swimming Pool 3
Tennis Court No
Water Sports Platform No
Bowling No
Pickle Ball No
Cabin Features & Amenities
24-Hour Room Service Yes
Hair Dryer Yes
Safe Yes
Telephone Yes
Television Yes
Kids Facilities & Family Activities
Babysitting Yes
Children's Playroom Yes
Kiddie Pool Yes
Supervised Youth Program Yes
Teen Center Yes
Character Experiences No
Cooking Classes No
Rock Climbing Wall No
Dry Slides No
Escape Room No
Game Shows No
Waterslide No
Laser Tag No
Private Island No
Racetrack No
Roller Coaster No
Ropes Course No
Virtual Reality Games No
Zipline No
Special Needs & Requests
Adjoining Cabins
     (private connecting doors)
Kosher Meals No
Single Occupancy Cabins Yes
Single Share Program No
Wheelchair-Accessible Cabins Yes