Cruiseable Plan my cruise

Ship comparison

Costa Diadema vs MSC Seascape

The verdict

Which should you choose?

Costa Diadema is a mega Costa Cruises ship carrying 4,947 passengers, in service since 2012. MSC Seascape is a mega MSC Cruises ship carrying 4,560 passengers, in service since 2022.

Choose Costa Diadema if you want a more family-friendly ship, a lower starting fare or better-rated entertainment: it outscores MSC Seascape for family friendly (8.0 vs 3.0) and entertainment (8.0 vs 7.0) in Cruiseable’s Bliss scores and its cruises start from $109 (vs $325).

Choose MSC Seascape if you want more space per passenger, more crew per passenger or a newer ship: it has 37.4 gross tons per passenger (vs 26.8), it has a crew member for every 2.8 passengers (vs 3.9) and its maiden voyage was in 2022 (vs 2012).

Side by side

Specifications

marks the better figure where more, or less, is plainly better.

Costa DiademaMSC Seascape
Cruise line Costa Cruises MSC Cruises
Ship size Mega Mega
Maiden voyagenewer highlighted 2012 2022 (better)
Gross tonnage 132,500 170,412
Passengers 4,947 4,560
Crew 1,253 1,648
Passengers per crew memberfewer is better 3.9 2.8 (better)
Space per passengergross tons per passenger; more is roomier 26.8 37.4 (better)
Decks 20 19
Length 1,004 ft 1,112 ft
Beam 122 ft 135 ft
Speed 25 mph
Cruiseable ratingout of 10 8 / 10 (better) 7 / 10
Cruises on sale 103 2
Upcoming sailings 188 109
Cruise lengths 1–27 nights 5–7 nights
Fares fromlower highlighted $109 (better) $325

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 2 of the ten, MSC Seascape on 5, with 3 level.

  • Active Costa Diadema: 6.0 MSC Seascape: 7.0
  • Adventure & nature Costa Diadema: 6.0 MSC Seascape: 6.0
  • Cultural Costa Diadema: 6.0 MSC Seascape: 7.0
  • Dining Costa Diadema: 7.0 MSC Seascape: 7.0
  • Entertainment Costa Diadema: 8.0 MSC Seascape: 7.0
  • Family friendly Costa Diadema: 8.0 MSC Seascape: 3.0
  • Party Costa Diadema: 7.0 MSC Seascape: 7.0
  • Romantic Costa Diadema: 6.0 MSC Seascape: 7.0
  • Spa & fitness Costa Diadema: 6.0 MSC Seascape: 7.0
  • Staterooms Costa Diadema: 6.0 MSC Seascape: 7.0

MSC Cruises

MSC Seascape

MSC Seascape launched in November 2022 as the latest in a line of mega-size smartships from MSC Cruises. The ship holds 4,560 passengers at double capacity and 5,179 people at maximum capacity during its 7- to 14-day Caribbean sailings from Miami.

Sailing now

2 cruises on sale, from $325.

Questions

Costa Diadema or MSC Seascape?

Which is bigger, Costa Diadema or MSC Seascape?

MSC Seascape is bigger at 170,412 gross tons, against 132,500 gross tons for Costa Diadema. Costa Diadema carries 4,947 passengers and MSC Seascape carries 4,560.

Which ship is newer, Costa Diadema or MSC Seascape?

MSC Seascape is newer, with a maiden voyage in 2022 against 2012 for Costa Diadema.

Which has more space per passenger?

MSC Seascape, with 37.4 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?

MSC Seascape, with one crew member for every 2.8 passengers against one for every 3.9 on Costa Diadema.

Which is better for families?

Costa Diadema scores higher for family friendliness in Cruiseable’s Bliss scores: 8.0 out of 10, against 3.0 for MSC Seascape.

Still deciding?

Tell us what matters and we will match the sailing

Send your dates, budget and who is travelling, and our partner travel agency will come back to you about Costa Diadema, MSC Seascape or a ship that suits you better.

Plan my cruise

Compare different ships