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Ship comparison

Celebrity Millennium vs Costa Diadema

The verdict

Which should you choose?

Celebrity Millennium is a large Celebrity Cruises ship carrying 2,158 passengers, in service since 2000. Costa Diadema is a mega Costa Cruises ship carrying 4,947 passengers, in service since 2012.

Choose Celebrity Millennium if you want a better-rated spa and gym, more crew per passenger or more space per passenger: it outscores Costa Diadema for spa & fitness (10.0 vs 6.0) in Cruiseable’s Bliss scores, it has a crew member for every 2.2 passengers (vs 3.9) and it has 42.2 gross tons per passenger (vs 26.8).

Choose Costa Diadema if you want a lower starting fare, a newer ship or more of a party: it outscores Celebrity Millennium for party (7.0 vs 6.0) in Cruiseable’s Bliss scores, its cruises start from $109 (vs $1,307) and its maiden voyage was in 2012 (vs 2000).

Side by side

Specifications

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

Celebrity MillenniumCosta Diadema
Cruise line Celebrity Cruises Costa Cruises
Ship size Large Mega
Maiden voyagenewer highlighted 2000 2012 (better)
Last refurbishedmore recent highlighted 2015
Gross tonnage 91,000 132,500
Passengers 2,158 4,947
Crew 999 1,253
Passengers per crew memberfewer is better 2.2 (better) 3.9
Space per passengergross tons per passenger; more is roomier 42.2 (better) 26.8
Decks 11 20
Length 965 ft 1,004 ft
Beam 105 ft 122 ft
Speed 25 mph
Cruiseable ratingout of 10 8 / 10 8 / 10
Cruises on sale 37 103
Upcoming sailings 65 188
Cruise lengths 7–15 nights 1–27 nights
Fares fromlower highlighted $1,307 $109 (better)

Bliss scores

How they rate, out of 10

Cruiseable rates ships out of 10 on ten parts of a cruise holiday. Celebrity Millennium leads on 6 of the ten, Costa Diadema on 2, with 2 level.

  • Active Celebrity Millennium: 6.0 Costa Diadema: 6.0
  • Adventure & nature Celebrity Millennium: 7.7 Costa Diadema: 6.0
  • Cultural Celebrity Millennium: 8.0 Costa Diadema: 6.0
  • Dining Celebrity Millennium: 7.1 Costa Diadema: 7.0
  • Entertainment Celebrity Millennium: 7.4 Costa Diadema: 8.0
  • Family friendly Celebrity Millennium: 8.0 Costa Diadema: 8.0
  • Party Celebrity Millennium: 6.0 Costa Diadema: 7.0
  • Romantic Celebrity Millennium: 8.0 Costa Diadema: 6.0
  • Spa & fitness Celebrity Millennium: 10.0 Costa Diadema: 6.0
  • Staterooms Celebrity Millennium: 8.0 Costa Diadema: 6.0

Celebrity Cruises

Celebrity Millennium

Celebrity Millennium, a mega-liner that debuted in 2000 (I was among the passengers on her maiden voyage and again in 2014), more than holds her own today after a refurbishment in in which the ship emerged with many exclusive features of Celebrity Cruises' Solstice class ships.

Highlights

  • Dinner at quirky Qsine, whose unique, delicious fare costs $45 a person
  • Pool butlers at your service
  • Our deluxe balcony stateroom, which was surprisingly spacious and very comfortable
  • Rejuvenating in the 25,000-square-foot Canyon Ranch SeaClub spa

Sailing now

37 cruises on sale, from $1,307.

Questions

Celebrity Millennium or Costa Diadema?

Which is bigger, Celebrity Millennium or Costa Diadema?

Costa Diadema is bigger at 132,500 gross tons, against 91,000 gross tons for Celebrity Millennium. Celebrity Millennium carries 2,158 passengers and Costa Diadema carries 4,947.

Which ship is newer, Celebrity Millennium or Costa Diadema?

Costa Diadema is newer, with a maiden voyage in 2012 against 2000 for Celebrity Millennium.

Which has more space per passenger?

Celebrity Millennium, with 42.2 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?

Celebrity Millennium, with one crew member for every 2.2 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.

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