Costa Diadema is the elegant Italian-style flagship of Costa's pre-Smeralda era, carrying up to 4,947 guests across the Mediterranean in summer and the Persian Gulf from Dubai in winter. Highlights include a 500-metre outdoor promenade and a sprawling four-deck Samsara spa.
Ship Details
Ship Amenities
Pools & Sun Decks
Three swimming pools — one with a retractable roof — plus eight hot tubs and a multi-sport pitch
Restaurants & Bars
Seven restaurants and 15 bars, from authentic Italian classics to teppanyaki and pizza by the slice
Samsara Spa
A 7,800 m² wellness area across four decks with thalassotherapy, sauna, steam room and gym
Entertainment
Three-deck theatre, 4D cinema, casino and live Italian-style shows every evening
Family & Kids
Squok kids' club and dedicated programs for children and teens across age groups
Deck Plans
Available cruises
Frequently Asked Questions
Costa Diadema is ideal for guests who want classic Italian cruising at its finest — elegant interiors, gourmet Italian cuisine and warm Mediterranean hospitality. With a vast spa, plenty of dining choices and dedicated kids' programs, it suits couples, families and solo travelers alike.
The ship offers three swimming pools (one with a retractable roof), the four-deck Samsara spa, a 500-metre outdoor promenade, a 4D cinema, a multi-sport pitch and 15 bars. Italian gastronomy is everywhere — from artisan gelato and espresso to seven restaurants including teppanyaki and a steakhouse.