Costa Cruises
Costa Diadema
- Cruises
- 73
- From
- $490
Ship comparison
Costa Diadema vs Costa Smeralda
Costa Cruises
Costa Smeralda
- Cruises
- 95
- From
- $296
The verdict
Which should you choose?
Costa Diadema is a mega Costa Cruises ship carrying 4,947 passengers, in service since 2014. Costa Smeralda is a mega Costa Cruises ship carrying 5,224 passengers, in service since 2019.
Choose Costa Diadema if you want better-rated dining, better-rated entertainment or more of a party: it outscores Costa Smeralda for dining (7.0 vs 5.0), entertainment (8.0 vs 6.0) and party (7.0 vs 5.0) in Cruiseable’s Bliss scores.
Choose Costa Smeralda if you want more space per passenger, a lower starting fare or more crew per passenger: it has 34.5 gross tons per passenger (vs 26.8), its cruises start from $296 (vs $490) and it has a crew member for every 3.2 passengers (vs 3.9).
Side by side
Specifications
marks the better figure where more, or less, is plainly better.
| Costa Diadema | Costa Smeralda | |
|---|---|---|
| Cruise line | Costa Cruises | Costa Cruises |
| Ship size | Mega | Mega |
| Maiden voyagenewer highlighted | 2014 | 2019 (better) |
| Gross tonnage | 132,500 | 180,000 |
| Passengers | 4,947 | 5,224 |
| Crew | 1,253 | 1,646 |
| Passengers per crew memberfewer is better | 3.9 | 3.2 (better) |
| Space per passengergross tons per passenger; more is roomier | 26.8 | 34.5 (better) |
| Cabins | — | 2,612 |
| Decks | 20 | 20 |
| Length | 1,004 ft | 1,105 ft |
| Beam | 122 ft | 137 ft |
| Cruiseable ratingout of 10 | 8 / 10 (better) | 6 / 10 |
| Cruises on sale | 73 | 95 |
| Upcoming sailings | 143 | 303 |
| Cruise lengths | 2 to 27 nights | 2 to 17 nights |
| Fares fromlower highlighted | $490 | $296 (better) |
Bliss scores
How they rate, out of 10
Cruiseable rates ships out of 10 on ten parts of a cruise holiday. Costa Diadema leads on 9 of the ten, Costa Smeralda on 0, with 1 level.
- Active
- Adventure & nature
- Cultural
- Dining
- Entertainment
- Family friendly
- Party
- Romantic
- Spa & fitness
- Staterooms
Costa Cruises
Costa Diadema
Sailing now
73 cruises on sale, from $490.
Costa Cruises
Costa Smeralda
The new flagship of the Costa Cruises fleet, Costa Smeralda debuted in December 2019 with hallmark Made in Italy touches throughout, from the public areas to the cabins.
Sailing now
95 cruises on sale, from $296.
Questions
Costa Diadema or Costa Smeralda?
Which is bigger, Costa Diadema or Costa Smeralda?
Costa Smeralda is bigger at 180,000 gross tons, against 132,500 gross tons for Costa Diadema. Costa Diadema carries 4,947 passengers and Costa Smeralda carries 5,224.
Which ship is newer, Costa Diadema or Costa Smeralda?
Costa Smeralda is newer, with a maiden voyage in 2019 against 2014 for Costa Diadema.
Which has more space per passenger?
Costa Smeralda, with 34.5 gross tons per passenger against 26.8 on Costa Diadema. The higher the figure, the more ship there is for each guest.
Which has more crew per passenger?
Costa Smeralda, with one crew member for every 3.2 passengers against one for every 3.9 on Costa Diadema.
Which is better for families?
They score the same for family friendliness in Cruiseable’s Bliss scores: 8.0 out of 10.
Still deciding?
Tell us what matters and we will match the sailing
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