Costa Diadema Reviews

Customer Rating

Costa Diadema

3.8

789 Reviews

Ship

Reviews

Deck plan

Position

Our Expert Rating

Costa Diadema is a stylish and luxurious addition to the fleet of Costa Cruises characterized with an Italian way of life. Guests who like a casual atmosphere in combination with a stunning entertainment programme and Italian cuisine should book a cruise with this ship!

Food & beverage

3.5

Child-friendliness

3.5

Sports & fitness

3.5

Wellness

3.5

Luxury & comfort

3.5

Expert Rating

Costa Diadema

3.5

Customer Ratings by Category

Good & beverage

4.0

Child-friendliness

4.0

Sports & fitness

3.9

Wellness

3.6

Service aboard

4.2

Embarkation

4.0

Stateroom

4.1

Shore excursions

3.2

Extra expenses

3.1

Guest service on board

3.9

Entertainment

3.8

Overall rating

3.8

789 single Reviews

Anonymous

Inside | Cabin 9011

May 2026

1.0

Review Costa Diadema

Stateroom

1.0

Embarkation

1.0

Guest service on board

1.0

Good & beverage

1.0

Entertainment

1.0

Sports & fitness

3.0

Extra expenses

1.0

Service aboard

1.0

Wellness

2.0

Aline M.

Balcony | Cabin 2187

May 2026

5.0

I absolutely loved it!!!!

Stateroom

5.0

Embarkation

3.0

Good & beverage

5.0

Entertainment

3.0

Sports & fitness

5.0

Child-friendliness

3.0

Extra expenses

3.0

Service aboard

5.0

Wellness

5.0

That was the best part: The gym and spa.

Hartmut E.

Balcony | Cabin 7269

May 2026

4.0

Review Costa Diadema

Stateroom

5.0

Embarkation

1.0

Guest service on board

4.0

Good & beverage

2.0

Entertainment

3.0

Child-friendliness

4.0

Extra expenses

5.0

Service aboard

3.0

Anonymous

Outside | Cabin 10008

May 2026

5.0

Review Costa Diadema

Stateroom

5.0

Embarkation

1.0

Guest service on board

5.0

Good & beverage

4.0

Entertainment

2.0

Shore excursions

3.0

Extra expenses

2.0

Service aboard

5.0

Johann Fidel H.

Balcony | Cabin 8205

April/May 2026

1.0

Review Costa Diadema

Stateroom

5.0

Embarkation

1.0

Guest service on board

1.0

Good & beverage

1.0

Entertainment

1.0

Sports & fitness

1.0

Child-friendliness

1.0

Shore excursions

1.0

Extra expenses

5.0

Service aboard

1.0

Wellness

1.0

Andrea Bettina V.

Inside | Cabin Guarantee stateroom

April/May 2026

3.0

Review Costa Diadema

Stateroom

3.0

Embarkation

3.0

Guest service on board

4.0

Good & beverage

4.0

Entertainment

3.0

Shore excursions

2.0

Extra expenses

4.0

Service aboard

5.0

Anonymous

Balcony | Cabin 6264

April/May 2026

4.0

Review Costa Diadema

Stateroom

3.0

Embarkation

1.0

Guest service on board

1.0

Good & beverage

4.0

Entertainment

1.0

Child-friendliness

3.0

Shore excursions

2.0

Extra expenses

2.0

Service aboard

3.0

Olaf B.

Inside | Cabin 7164

October 2025

3.0

Review Costa Diadema

Stateroom

3.0

Embarkation

5.0

Guest service on board

5.0

Good & beverage

5.0

Entertainment

3.0

Child-friendliness

1.0

Shore excursions

4.0

Extra expenses

4.0

Service aboard

4.0

Wellness

2.0

Liudmila M.

Outside | Cabin 7209

October 2025

4.0

Review Costa Diadema

Stateroom

4.0

Embarkation

4.0

Guest service on board

4.0

Good & beverage

4.0

Entertainment

4.0

Sports & fitness

5.0

Child-friendliness

4.0

Extra expenses

4.0

Service aboard

5.0

Anonymous

Balcony | Cabin 9257

September/October 2025

5.0

Review Costa Diadema

Stateroom

5.0

Embarkation

5.0

Guest service on board

5.0

Good & beverage

5.0

Entertainment

5.0

Sports & fitness

5.0

Child-friendliness

5.0

Extra expenses

3.0

Service aboard

5.0

1/79

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