Read the reviews from those who have traveled aboard Costa Diadema. Discover details about life on board, from culinary offerings to leisure activities.
Passengers share their experiences in the restaurants, bars, relaxation areas, and during organized excursions.
Find out more about the cabins, available services, and entertainment moments enjoyed during the cruise.
The reviews will help you understand what to expect and how to plan your trip more effectively. Browse the reviews to organize a cruise that suits you and get ready for an unforgettable experience.

P
preventivo cabina numero 3 25 Sep 2026
★ ★ ★ ★ ★
Costa Cruises

Inglese A beautiful and comfortable ship, with various areas where you can relax and spend time pleasantly.

G
Giuseppe Salerno 26 Jul 2026
★ ★ ★ ★ ★
Costa Cruises

G
Gabriella 25 Jul 2026
★ ★ ★ ★ ★
Costa Cruises

Everything was nice, maybe the cabin style is a bit outdated

G
Giovanni D'Angelo 25 Jul 2026
★ ★ ★ ★ ★
Costa Cruises

R
Rosi 6 Jul 2026
★ ★ ★ ★ ★
Costa Cruises

Beautiful, with spacious areas.

G
giovanna maria 31 May 2026
★ ★ ★ ★ ★
Costa Cruises

A beautiful but dated ship, in need of a few touch-ups.

G
Grazia 16 May 2026
★ ★ ★ ★ ★
Costa Cruises

M
maurizio alvino 15 May 2026
★ ★ ★ ★ ★
Costa Cruises

G
giovanni zaccaria 15 May 2026
★ ★ ★ ★ ★
Costa Cruises

L
luca 22 Dec 2025
★ ★ ★ ★ ★
Costa Cruises

5
5-due adulti e due bambini 29 Oct 2025
★ ★ ★ ★ ★
Costa Cruises

S
Sarah 24 Oct 2025
★ ★ ★ ★ ★
Costa Cruises

Beautiful because it’s not huge! Compared to experiences on the Costa Toscana, this one was much better: smaller, fewer passengers, and less focused on technology.

A
Anna Vivaldo 20 Oct 2025
★ ★ ★ ★ ★
Costa Cruises

Excellent

E
emanuela 16 Oct 2025
★ ★ ★ ★ ★
Costa Cruises

Everyone was excellent; Orfei was outstanding. Surendra at the restaurant did a great job, and the cabin attendant was excellent as well!

S
Simona 29 Sep 2025
★ ★ ★ ★ ★
Costa Cruises

Fantastic

T
Tiziana Rapalini 24 Sep 2025
★ ★ ★ ★ ★
Costa Cruises

The ship is very beautiful, even if a bit dated; it is without a doubt my favorite among the (few) ships in the fleet.

I
Ivano 13 Sep 2025
★ ★ ★ ★ ★
Costa Cruises

Top

A
alessandro 4 Aug 2025
★ ★ ★ ★ ★
Costa Cruises

Beautiful and well-organized ship

D
Daniela panzeri 26 Jul 2025
★ ★ ★ ★ ★
Costa Cruises

Compliments to the waiters, especially the Peruvian Ricardo, a lot of confusion for the excursions (one was canceled because there were too many Italians)

Z
Zerillo Maria Daniela - DOPPIA DANIELA + DOPPIA PINA 16 Jul 2025
★ ★ ★ ★ ★
Costa Cruises

Ship a bit old