Costa Diadema

• Meals (main restaurants)Included
• AlcoholExtra charge
• GratuitiesUnknown
• Wi‑FiExtra charge
• Specialty diningExtra charge
• Shore excursionsExtra charge

The basic fare (My Cruise/Cruise Only) includes the cabin, full board, and entertainment, while drinks, Wi-Fi, tips, and specialty restaurants are charged separately. The higher Comfort Plus/Total Comfort plans include a drinks package, and Deluxe, for suites, adds a dedicated restaurant, spa access, a higher-tier drinks package, and more.

• Extra chargeDrinks (one beer)Bottled beer, about €5
• Extra chargeSoft drinks and waterSoft drinks Canned soda, about €3 / Water Water by the glass is charged; bottles are sold separately (about €2-3 at bars, etc.)
• Extra chargeDrink packageMy Soft Drinks (non-alcoholic): €23-27/day; My Drinks (standard, including alcohol): €35-42/day; My Drinks Plus (premium): €48-57/day. A 15% service charge is added to all, and advance online purchase often gives a 20-30% discount.
• Extra chargeWi‑FiThe full cruise duration can also be purchased at once, often with an approximately 8-10% discount.
• UnknownGratuities (automatic service charge)Ages 15 and over €11 per day, ages 4 to 14 €5.50 per day, ages 3 and under free. A separate 15% service charge is added to drink purchases.
• UnknownLaundryNo self-service laundry. Per-item charges (shirts about €3.50, T-shirts about €1.50, one-piece dresses about €14). Higher-tier Costa Club members (Gold/Platinum) can also use the unlimited-fill Magic Bag service for €19.99.
• Shore excursionsExtra; varies by port

Prices are shown in the onboard currency; no currency conversion is applied.

Onboard currency

EUR

Gratuities

The service charge (gratuity) is not included in the fare. Instead, a fixed amount per night is automatically added to the onboard account after boarding. It applies uniformly to all ships and all guests regardless of fare type (Basic/Comfort-type/Deluxe), and guests are not expected to reduce or remove it at their discretion.

Payment

Cashless onboard

Medical facilities

There is a medical center staffed by doctors and nurses, available 24 hours for emergencies. Consultations and treatment are not free and are charged to your onboard account each time (travel insurance generally cannot be used directly at the counter, and costs are usually claimed afterward). An exact Costa-specific fee schedule could not be confirmed from public information.

Bringing items onboard

Bringing alcohol on board is prohibited in principle, whether at embarkation or at ports of call, and anything found in X-ray screening is confiscated until the end of the cruise. Wine and champagne may be allowed only if approved by prior application, in which case a corkage fee of €10 per bottle is charged. Alcohol purchased at ports of call or in the onboard duty-free shops is also held until the end of the cruise (effectively confiscated).

Mobile and connectivity

The EU "free roaming" rule applies only on land, such as at ports of call. If your phone connects to the ship's maritime network at sea, expensive maritime roaming charges outside the scope of the regulation (both calls and data are far higher than usual) apply, so the practical standard approach at sea is to put your phone offline or in airplane mode and use Costa's onboard Wi-Fi package or an eSIM.