Costa Diadema Reviews

Customer Rating

Costa Diadema

3.7

813 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

3.9

Sports & fitness

3.8

Wellness

3.7

Service aboard

4.2

Embarkation

3.9

Stateroom

4.1

Shore excursions

3.2

Extra expenses

3.1

Guest service on board

3.9

Entertainment

3.8

Overall rating

3.8

813 single Reviews

Fatma A.

Inside | Cabin 6225

June/July 2026

4.0

Excellent

Stateroom

5.0

Embarkation

4.0

Guest service on board

4.0

Good & beverage

4.0

Entertainment

4.0

Child-friendliness

4.0

Shore excursions

5.0

Extra expenses

3.0

Service aboard

4.0

That was the best part: Jakuzi, food, personal, service, cabin, view, safety

Anonymous

Balcony | Cabin 9190

June 2026

3.0

Review Costa Diadema

Stateroom

5.0

Embarkation

2.0

Guest service on board

4.0

Good & beverage

4.0

Entertainment

2.0

Shore excursions

4.0

Extra expenses

3.0

Service aboard

5.0

Bettina R.

Inside | Cabin Guarantee stateroom

June 2026

4.0

Review Costa Diadema

Stateroom

4.0

Embarkation

3.0

Guest service on board

3.0

Good & beverage

4.0

Entertainment

4.0

Sports & fitness

3.0

Child-friendliness

4.0

Extra expenses

3.0

Service aboard

5.0

Anonymous

Balcony | Cabin 8184

June 2026

4.0

Review Costa Diadema

Stateroom

5.0

Embarkation

1.0

Guest service on board

5.0

Good & beverage

5.0

Entertainment

3.0

Child-friendliness

4.0

Extra expenses

4.0

Service aboard

4.0

Anonymous

Balcony | Cabin 8183

June 2026

4.0

Review Costa Diadema

Stateroom

4.0

Embarkation

1.0

Guest service on board

4.0

Good & beverage

4.0

Entertainment

1.0

Child-friendliness

4.0

Extra expenses

4.0

Service aboard

4.0

Olaf W.

Inside | Cabin 6096

June 2026

4.0

Review Costa Diadema

Stateroom

5.0

Embarkation

5.0

Guest service on board

5.0

Good & beverage

4.0

Entertainment

5.0

Sports & fitness

5.0

Child-friendliness

5.0

Extra expenses

5.0

Service aboard

5.0

Miriam Esther I.

Balcony | Cabin 2124

May/June 2026

1.0

Review Costa Diadema

Stateroom

1.0

Embarkation

5.0

Guest service on board

1.0

Good & beverage

3.0

Entertainment

2.0

Child-friendliness

1.0

Extra expenses

3.0

Service aboard

3.0

Anonymous

Inside | Cabin 7047

May/June 2026

5.0

Review Costa Diadema

Stateroom

5.0

Embarkation

5.0

Guest service on board

5.0

Good & beverage

3.0

Entertainment

3.0

Sports & fitness

4.0

Extra expenses

3.0

Service aboard

5.0

Karin M.

Inside | Cabin 9260

May/June 2026

3.0

Review Costa Diadema

Stateroom

5.0

Embarkation

5.0

Good & beverage

5.0

Entertainment

4.0

Extra expenses

3.0

Service aboard

5.0

Sabine Gabriele S.

Inside | Cabin 8111

May/June 2026

2.0

Review Costa Diadema

Stateroom

5.0

Embarkation

3.0

Guest service on board

2.0

Good & beverage

3.0

Entertainment

2.0

Sports & fitness

3.0

Child-friendliness

2.0

Shore excursions

3.0

Extra expenses

2.0

Service aboard

3.0

1/82

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