Costa Diadema

Costa Diadema Cruise Deals & Price Tracker

Compare Costa Diadema cruise prices across 6 international markets. Track price drops and find the best Costa Diadema deals.

232 cruises available

Prices from 251

1 ships

6 markets

Track Cruises monitors 232 cruises on Costa Diadema daily across 6 international markets. Prices start from €251 per person, sailing to 5 destinations. Set price alerts to get notified when Costa Diadema prices drop.

About Costa Diadema

Costa Diadema is the flagship Dream-class vessel and was the largest ship ever built for an Italian cruise line at her launch. She features a sweeping outdoor promenade on Deck 5, a country club-style pool area, and an extensive Samsara Spa with ocean-view treatment rooms.

Ship Specifications

Year Built2014

Gross Tonnage132,500 GT

Passengers3,724

Crew1,253

Decks14

Ship ClassDream

Ozean-Kreuzfahrten ab Southampton

Costa Diadema

Ocean Cruises

DepartureMay 11, 2026

Duration5 days

Best Price (UK)

£219GBP per person

6 markets

€251 EUR

Ozean-Kreuzfahrten ab Southampton

Costa Diadema

Ozean-kreuzfahrten

DepartureApr 26, 2027

Duration5 days

Best Price (Germany)

€279EUR per person

2 markets

Ozean-Kreuzfahrten ab Santos

Costa Diadema

Ocean Cruises

DepartureApr 04, 2027

Duration6 days

Best Price (Germany)

€349EUR per person

4 markets

Ozean-Kreuzfahrten ab Kiel

Costa Diadema

Ozean-kreuzfahrten

DepartureSep 10, 2027

Duration5 days

Best Price (Austria)

€369EUR per person

3 markets

South America from Itajai

Costa Diadema

South America

DepartureDec 02, 2026

Duration4 days

Best Price (USA)

$452USD per person

1 market

€383 EUR

South America from Itajai

Costa Diadema

South America

DepartureApr 01, 2026

Duration4 days

Best Price (USA)

$492USD per person

1 market

€417 EUR

South America from Itajai

Costa Diadema

South America

DepartureDec 09, 2026

Duration4 days

Best Price (USA)

$502USD per person

1 market

€425 EUR

South America from Itajai

Costa Diadema

South America

DepartureDec 16, 2026

Duration4 days

Best Price (USA)

$502USD per person

1 market

€425 EUR

South America from Itajai

Costa Diadema

South America

DepartureMar 24, 2027

Duration4 days

Best Price (USA)

$504USD per person

1 market

€427 EUR

South America from Santos

Costa Diadema

South America

DepartureNov 23, 2026

Duration3 days

Best Price (USA)

$519USD per person

1 market

€440 EUR

Minikreuzfahrten ab Savona

Costa Diadema

Mini Cruises

DepartureOct 29, 2026

Duration5 days

Best Price (USA)

$529USD per person

6 markets

€448 EUR

South America from Santos

Costa Diadema

South America

DepartureDec 03, 2026

Duration4 days

Best Price (USA)

$530USD per person

1 market

€449 EUR

Minikreuzfahrten ab Marseille

Costa Diadema

Minikreuzfahrten

DepartureOct 28, 2026

Duration5 days

Best Price (USA)

$531USD per person

2 markets

€450 EUR

South America from Itajai

Costa Diadema

South America

DepartureApr 15, 2026

Duration4 days

Best Price (USA)

$562USD per person

1 market

€476 EUR

South America from Itajai

Costa Diadema

South America

DepartureApr 08, 2026

Duration4 days

Best Price (USA)

$562USD per person

1 market

€476 EUR

South America from Itajai

Costa Diadema

South America

DepartureMar 31, 2027

Duration4 days

Best Price (USA)

$564USD per person

1 market

€478 EUR

Ozean-Kreuzfahrten ab Savona

Costa Diadema

Ocean Cruises

DepartureNov 02, 2026

Duration7 days

Best Price (UK)

£419GBP per person

6 markets

€480 EUR

South America from Santos

Costa Diadema

South America

DepartureDec 17, 2026

Duration4 days

Best Price (USA)

$567USD per person

1 market

€480 EUR

South America from Santos

Costa Diadema

South America

DepartureDec 10, 2026

Duration4 days

Best Price (USA)

$567USD per person

1 market

€480 EUR

South America from Santos

Costa Diadema

South America

DepartureMar 25, 2027

Duration4 days

Best Price (USA)

$569USD per person

1 market

€482 EUR

South America from Itajai

Costa Diadema

South America

DepartureMar 20, 2027

Duration5 days

Best Price (USA)

$574USD per person

1 market

€486 EUR

Minikreuzfahrten ab Savona

Costa Diadema

Minikreuzfahrten

DepartureSep 23, 2026

Duration5 days

Best Price (USA)

$582USD per person

4 markets

€492 EUR

Minikreuzfahrten ab Marseille

Costa Diadema

Mini Cruises

DepartureSep 22, 2026

Duration5 days

Best Price (USA)

$584USD per person

2 markets

€494 EUR

South America from Itajai

Costa Diadema

South America

DepartureMar 27, 2027

Duration5 days

Best Price (USA)

$624USD per person

1 market

€529 EUR

View All Costa Diadema Cruises

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