General cargo ship · Singapore flag · built 2011
DOUBLE DIAMOND: CO₂ emissions 2018–2025
IMO 9478470 EU ETS8 reporting years
- CO₂ reported 2025
- 4,700 t
- Fuel burned
- 1,495 t
- Time at sea
- 2,034 h
- Emitted at berth
- 4% of total
- Share of year under way
- 23%
- Gross tonnage
- 21,483
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DOUBLE DIAMOND against its type
Built in 2011, it is 4 years newer than the median general cargo ship on this register, which was built in 2007 (2,852 vessels with a known build year). At 21,483 gross tonnage it is larger than 83% of the other 2,665 general cargo ships with a recorded tonnage. It is one of 51 general cargo ships here under the Singapore flag, 1.7% of the 3,081 on the register. The same builder is recorded for 96 other vessels here, 38 of them general cargo ships. Its MRV returns name it DOUBLE DIAMOND for 2018–2024 and V MONOCEROS for 2025. The reported port of registry changed: Majuro (2021–2024), then Singapore (2025).
Its 4,700 t of CO₂ for 2025 is 1.7 times the median of 2,820 t among the 2,469 general cargo ships on this register that reported for 2025. Per nautical mile it emitted 241.5 kg CO₂, 2.0 times the type median of 122.2 kg. It logged 2,034 hours at sea against a median of 3,044 hours for its type that year. 4.4% of its 2025 emissions were at berth; the median for general cargo ships was 4.3%. Across 7 years with reported emissions, the highest was 2022 (5,449 t) and the lowest 2020 (2,130 t). Its efficiency percentile within the type went from 58 in 2019 to 10 in 2022 (lower is more efficient). Of the 6 sister ships listed below with a 2025 return, 6 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 4,700 | 1,495 | — | 2,034 | 205 | 241.5 | — | — |
| 2024 | 4,674 | 1,499 | — | 1,789 | 171 | 226.0 | — | — |
| 2023 | 3,072 | 982 | — | 1,464 | 110 | 218.7 | — | — |
| 2022 | 5,449 | 1,732 | 20,759 | 2,608 | 192 | 262.5 | 10.6 | 10 |
| 2021 | 3,609 | 1,149 | 15,530 | 1,348 | 142 | 232.4 | 10.6 | 74 |
| 2020 | 2,130 | 675 | 6,961 | 751 | 111 | 306.0 | 19.8 | 98 |
| 2019 | 3,168 | 1,010 | 14,191 | 1,330 | 106 | 223.2 | 8.8 | 58 |
| 2018 | No EU/EEA voyages reported | |||||||
Vessel particulars
- IMO number
- 9478470
- Previously reported as
- V MONOCEROS
- Ship type
- General cargo ship
- Gross tonnage
- 21,483
- Length overall
- 177.0 m
- Beam
- 28.4 m
- Year built
- 2011
- Flag state
- Singapore per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Marshall Islands. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Tsuneishi Kure Dock
- Port of registry
- Singapore MRV 2025
- Home port
- Singapore
- Technical efficiency (design)
- EEXI (6.51 gCO₂/t·nm)
- Verifier
- Nippon Kaiji Kyokai, Japan
- Accreditation
- VS-21325-01
- Compliance document issued
- 2026-03-10
- Compliance document expires
- 2027-06-30
Efficiency against its own type2022
Position 41 of 406 qualifying general cargo ships by EEOI, at the 10th percentile. The dashed line is the type median, 23.3; this vessel reported 10.6.
EEOI divides emissions by transport work, which for this vessel and year was 514,545,798 tonne-miles over 20,759 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 48.4% higher than in 2019, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 0.6% and CO₂ per nautical mile rose 6.9%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 4,773 t
- Methane (CH₄)
- 0.07 t
- Nitrous oxide (N₂O)
- 0.27 t
- Under EU ETS
- 2,083 t, 44% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | VERIFAVIA (UK) LTD | United Kingdom |
| 2020 | NORMEC VERIFAVIA SAS | France |
| 2025 | Nippon Kaiji Kyokai | Japan |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars, a name history and a licensed photograph. Not found in the sources for this vessel: AIS movements in Norwegian waters, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.