Costa Diadema Cruise Ship Guide

What Makes Costa Diadema Different

Costa Diadema combines a conventional theatre with a varied food-and-bar lineup. The Carlsberg Country Rock Club gives the ship a distinct option for a casual evening with live rock music.

Explore the Costa Cruises guide for the line’s overall cruise style.

Onboard Highlights

• Carlsberg Country Rock Club
• Teppanyaki restaurant
• Squok Club and Squok Baby Area
• Theatre and casino

Dining & Reservations

Diadema’s published lineup includes teppanyaki, Pummid’Oro pizza and the Carlsberg venue. Check the menu prices and your package coverage before assuming these are part of the main dining allocation.

Cabins & Room Selection

For a family booking, compare the exact cabin occupancy and bed arrangement rather than choosing by category name alone. For a quieter stay, inspect proximity to public venues on the deck plan.

Use the cabin location guide to check what is above and below the room. Ask about obstructions and connecting doors before selecting a specific cabin.

Who Should Consider Costa Diadema?

Consider Diadema if you want a theatre, family spaces and several distinct evening venues. Compare it with Fascinosa for a second Costa option before selecting the itinerary.

Plan the Whole Trip

Choose the itinerary before comparing the headline fare. Review time in each port, overnight calls, flight connections and transfer distances. The cruise port guides can help with transport and arrival planning.

Add flights, hotels, transfers, onboard purchases and excursions with the total cruise cost calculator. For an accessibility requirement, use the accessible cruise guide and confirm the room and shore-access arrangements directly.

Related Ship Guides

• Costa Toscana
• Costa Smeralda
• Costa Fascinosa
• Costa Favolosa

Sources

Reviewed October 3, 2026. Confirm sailing schedules, fare inclusions and reservation terms for your booking.

• Official ship guide

Compare Your Ship Options

Use the Cruise Ship Comparison Tool to compare Costa Diadema with another ship, or use the Cruise Ship Finder to build a shortlist around the onboard features you want.