Diadema

Costa Diadema

About Costa Diadema Cruises

CruiseSheet currently lists 177 cruises from Diadema from only $293. Diadema is a Costa ship and is well known for its cruises to Europe and South America.

Over 3,700 passengers can comfortably sail on this Dream class vessel, based in Europe and South America and refurbished less than two years ago in 2023.

The Diadema Costa delights guests with a roller skating rink, a solarium, a gym, an outdoor movie theater, a spa, a jacuzzi, and a casino.

Costa Diadema

Best Diadema Cruise Deals

4 Night Barcelona to Barcelona cruise
September 22, 2025
Costa Diadema
S M L XL
Barcelona → Marseille → Savona → Barcelona
$388
$97 per day
Inside
21 Night Maceió to Kiel cruise
April 24, 2026
Costa Diadema
S M L XL
Maceió → Praia → Tenerife → Casablanca → Cadiz → Lisbon → Oporto → Vigo → Paris → London → Zeebrugge → Kiel
$1,669
$79 per day
Inside
25 Night Rio to Kiel cruise
April 20, 2026
Costa Diadema
S M L XL
Rio → Salvador → Maceió → Praia → Tenerife → Casablanca → Cadiz → Lisbon → Oporto → Vigo → Paris → London → Zeebrugge → Kiel
$2,007
$80 per day
Inside
21 Night Marseille to Sao Paolo cruise
November 7, 2025
Costa Diadema
S M L XL
Marseille → Savona → Barcelona → Malaga → Gibraltar → Cadiz → Casablanca → Tenerife → Mindelo → Maceió → Salvador → Rio → Sao Paolo
$2,801
$133 per day
Suite
20 Night Marseille to Rio cruise
November 7, 2025
Costa Diadema
S M L XL
Marseille → Savona → Barcelona → Malaga → Gibraltar → Cadiz → Casablanca → Tenerife → Mindelo → Maceió → Salvador → Rio
$2,681
$134 per day
Suite
Browse More Diadema Deals

Last Minute Diadema Cruise Deals

4 Night Barcelona to Barcelona cruise
September 22, 2025
Costa Diadema
S M L XL
Barcelona → Marseille → Savona → Barcelona
$388
$97 per day
Inside
12 Night Kiel to Savona cruise
September 12, 2025
Costa Diadema
S M L XL
Kiel → Copenhagen → Kristiansand → Paris → Vigo → Lisbon → Alicante → Barcelona → Marseille → Savona
$1,291
$108 per day
Inside
4 Night Savona to Savona cruise
September 24, 2025
Costa Diadema
S M L XL
Savona → Barcelona → Marseille → Savona
$491
$123 per day
Inside
11 Night Kiel to Marseille cruise
September 12, 2025
Costa Diadema
S M L XL
Kiel → Copenhagen → Kristiansand → Paris → Vigo → Lisbon → Alicante → Barcelona → Marseille
$1,221
$111 per day
Inside
4 Night Marseille to Marseille cruise
September 23, 2025
Costa Diadema
S M L XL
Marseille → Savona → Barcelona → Marseille
$493
$123 per day
Inside
See More Last Minute Diadema deals

Monthly Diadema Pricing

Diadema sailings during the the peak season of summer are much more expensive than the the low season of fall. On average sailings on Diadema are rather inexpensive compared to other ships. Look at the chart below for the monthly average cost per day.

Jan
$169
Feb
$150
Mar
$147
Apr
$134
May
$142
Jun
$162
Jul
$180
Aug
$189
Sep
$130
Oct
$129
Nov
Dec

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