---
title: "Costa Diadema vs Costa Smeralda"
url: https://cruisello.com/compare/costa-diadema-vs-costa-smeralda
description: "Compare Costa Diadema and Costa Smeralda side by side: fares, specs, schedule, and dining"
---

# Costa Diadema vs Costa Smeralda

| Spec | **Costa Diadema** | **Costa Smeralda** |
|------|------|------|
| Cruise Line | [Costa Cruises](https://cruisello.com/cruise-lines/costa-cruises.md) | [Costa Cruises](https://cruisello.com/cruise-lines/costa-cruises.md) |
| Ship Class | Dream-class | Excellence-class |
| Year Built | 2014 | 2019 |
| Last Refurbished | 2023 | 2025 |
| Registry | Genoa, Italy | Genoa, Italy |
| Onboard Currency | Euro | Euro |
| Passengers | 3,724 | 5,224 |
| Crew | 1,253 | 1,646 |
| Guests per Crew | 3:1 | 3.2:1 |
| Gross Tonnage | 132,500 GT | 185,010 GT |
| Decks | 14 | 20 |
| Length | 306m | 337m |
| Beam | 37.2m | 42m |
| Max Speed | 22.5 kn | 21.5 kn |
| Cheapest Cruise (2 guests) | [€262](https://cruisello.com/cruises/ligurian-sprint-savona-barcelona~COSTA-DIADEMA-20261101-2.md) / [$287](https://cruisello.com/cruises/saffron-wake-barcelona-to-alicante~COSTA-DIADEMA-20271003-1.md) | [€242](https://cruisello.com/cruises/vermouth-trail-marseille-barcelona~COSTA-SMERALDA-20261112-2.md) / [$408](https://cruisello.com/cruises/vermouth-trail-marseille-barcelona~COSTA-SMERALDA-20261112-2.md) |
| Cheapest per Night (per person) | [€61](https://cruisello.com/cruises/iberian-sunstone-barcelona-cadiz-lisbon~COSTA-DIADEMA-20261102-6.md) / [$82](https://cruisello.com/cruises/mistral-flight-savona-barcelona~COSTA-DIADEMA-20261028-3.md) | [€52](https://cruisello.com/cruises/sunward-migration-barcelona-malaga-funchal~COSTA-SMERALDA-20261112-11.md) / [$60](https://cruisello.com/cruises/sunward-migration-barcelona-malaga-funchal~COSTA-SMERALDA-20261112-11.md) |
| Solo From (1 guest) | [€131](https://cruisello.com/cruises/ligurian-sprint-savona-barcelona~COSTA-DIADEMA-20261101-2.md) / [$189](https://cruisello.com/cruises/pesto-to-tapas-savona-to-barcelona~COSTA-DIADEMA-20261029-2.md) | [€121](https://cruisello.com/cruises/vermouth-trail-marseille-barcelona~COSTA-SMERALDA-20261112-2.md) / [$204](https://cruisello.com/cruises/vermouth-trail-marseille-barcelona~COSTA-SMERALDA-20261112-2.md) |
| Cruise Length | 1–27 nights | 2–17 nights |
| Upcoming Sailings | [118](https://cruisello.com/cruises.md?ships=costa-cruises:costa-diadema) | [221](https://cruisello.com/cruises.md?ships=costa-cruises:costa-smeralda) |
| Departure Ports | 22 | 9 |
| Sails From | [Santos](https://cruisello.com/destinations/south-america/santos.md) (16), [Kiel](https://cruisello.com/destinations/baltic/kiel.md) (15), [Barcelona](https://cruisello.com/destinations/western-mediterranean/barcelona.md) (14), [Copenhagen](https://cruisello.com/destinations/baltic/copenhagen.md) (12), [Savona](https://cruisello.com/destinations/western-mediterranean/savona.md) (12), [Itajai](https://cruisello.com/destinations/south-america/itajai.md) (10), [Marseille](https://cruisello.com/destinations/western-mediterranean/marseille.md) (10), [Cádiz](https://cruisello.com/destinations/western-mediterranean/cadiz.md) (4), [Rio de Janeiro](https://cruisello.com/destinations/south-america/rio-de-janeiro.md) (3), [Salvador](https://cruisello.com/destinations/south-america/salvador.md) (3), [Alicante](https://cruisello.com/destinations/western-mediterranean/alicante.md) (2), [Buenos Aires](https://cruisello.com/destinations/south-america/buenos-aires.md) (2), [Las Palmas de Gran Canaria](https://cruisello.com/destinations/canary-islands/las-palmas-de-gran-canaria.md) (2), [Lisbon](https://cruisello.com/destinations/western-mediterranean/lisbon.md) (2), [Montevideo](https://cruisello.com/destinations/south-america/montevideo.md) (2), [Santa Cruz de Tenerife](https://cruisello.com/destinations/canary-islands/santa-cruz-de-tenerife.md) (2), [Dover](https://cruisello.com/destinations/british-isles-western-france/dover.md) (1), [Fortaleza](https://cruisello.com/destinations/south-america/fortaleza.md) (1), [Le Havre (Paris)](https://cruisello.com/destinations/british-isles-western-france/le-havre-paris.md) (1), [Leixões (Porto)](https://cruisello.com/destinations/western-mediterranean/leixoes-porto.md) (1), [Maceio](https://cruisello.com/destinations/south-america/maceio.md) (1), [Málaga](https://cruisello.com/destinations/western-mediterranean/malaga.md) (1) | [Santa Cruz de Tenerife](https://cruisello.com/destinations/canary-islands/santa-cruz-de-tenerife.md) (75), [Las Palmas de Gran Canaria](https://cruisello.com/destinations/canary-islands/las-palmas-de-gran-canaria.md) (40), [Barcelona](https://cruisello.com/destinations/western-mediterranean/barcelona.md) (26), [Marseille](https://cruisello.com/destinations/western-mediterranean/marseille.md) (24), [Civitavecchia (Rome)](https://cruisello.com/destinations/western-mediterranean/civitavecchia-rome.md) (15), [Genoa](https://cruisello.com/destinations/western-mediterranean/genoa.md) (13), [Cagliari](https://cruisello.com/destinations/western-mediterranean/cagliari.md) (10), [Naples](https://cruisello.com/destinations/western-mediterranean/naples.md) (8), [Savona](https://cruisello.com/destinations/western-mediterranean/savona.md) (8) |
| Dining (total) | – | – |
| Dining (included) | – | – |
| Dining (surcharge) | – | – |

## Ship Pages

- [Costa Diadema](https://cruisello.com/cruise-lines/costa-cruises/costa-diadema.md)
- [Costa Smeralda](https://cruisello.com/cruise-lines/costa-cruises/costa-smeralda.md)

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