HMS Diamond

HMS Diamond (D34)

A jewel in the naval crown, HMS Diamond is the third of the highly capable Type 45 air defence destroyers and one of the most advanced warships in the world.

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Nearly as tall as Nelson’s Column, Diamond's sleek lines are designed for stealth at sea, appearing virtually invisible on enemy radar.

Packing cutting-edge military sensors and a range of potent weapons systems, Diamond is ready to detect and destroy any airborne, surface and sub surface threat.

Her motto befits her name: honor clarissima gemma – honour is the brightest jewel.

She is proud to be affiliated with the cities of Coventry and Aberdeen, and with the Livery Companies the Worshipful Company of Barbers and the Worshipful Company of Playing Card Makers.

On the 31st August 2016, HMS Diamond set sail from Portsmouth to the Southern Mediterranean to replace the Royal Fleet Auxiliary ship RFA Mounts Bay on Operation Sophia for around two months.

Operation Sophia focused on tackling the human smugglers and arms traffickers who endanger the lives of innocent people. HMS Diamond's focus was to tackle the movement of arms. She provided a picture-building capability to help enforce the UN Security Council Resolution prohibiting the trafficking of arms to Libya.

HMS Diamond returned to Portsmouth in October 2016. She has recently carried out successful sea trials including test firing her world-beating Sea Viper missile system off the coast of Scotland. She is currently undergoing preparations in Portsmouth in readiness to deploy later in 2017.

HMS Diamond Sea Viper firing

HMS Diamond shows Type 45’s potent firepower in high sea missile test


HMS Diamond (D34) Latest News

HMS Diamond homecoming


Diamond leaps the rock

See all news for HMS Diamond (D34)

Current operation Maintenance and sea-trials

Ships, units and aircraft need periods of maintenance and sea-trials to ensure that they are at their best for any tasks asked of them.

  • Alongside

    Alongside in her home port of Portsmouth Naval Base

Ready to fight

When diplomacy fails, the UK has to be ready to protect its interests and its allies. What’s more, as a member of NATO and the UN, the UK also acts to support the enforcement of UN resolutions and come to the aid of our allies. This is where the Royal Marines come in: we train to go where we’re needed – by sea, land or air – and deploy our forces with the aim of restoring peace.

Location Portsmouth

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Unit History

The first battle honours1588

Ships with of this name have been in service of the crown for over 400 years, with at least 14 and possibly 16 in total.
Armada 1588 - this honour was awarded as a merchant vessel.

The first1652

The first warship to bear the name was a 40-gun frigate commissioned in 1652. She earned the several battle honours before being lost in 1693.

Battle Honours1652

Kentish Knock 1652

Battle Honours1653

Portland 1653
Gabbard 1653
Scheveningen 1653

Battle Honours1665

Lowestoft 1665

Battle Honours1666

Four Days Battle 1666
Orfordness 1666

Battle Honours1672

Sole Bay 1672

Battle Honours1673

Schooneveld 1673
Texel 1673

Battle Honours1854

Crimea 1854-55


The thirteenth Diamond was commissioned in 1931 and saw extensive action in WW II before being sunk by German aircraft in 1941.

Battle Honours1940

Spartivento 1940

Battle Honours1941

Mediterranean 1941
Malta Convoys 1941
Greece 1941


The penultimate Diamond was a Daring-class destroyer commissioned in 1950. She was used as a dockside training vessel from 1970 before being sold in 1980

Type 452011

In 2011 HMS Diamond became the third Type 45 Destroyer to be commissioned into the Fleet. By the summer of that year she was operational and was deployed to the Middle East for six months.

Operation RECSYR2014

HMS Diamond deployed again in January 2014. She was originally planned to return to the Gulf, however the Ship was re-tasked en route to conduct Op RECSYR (REmoval of Chemical weapons from SRYia).

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Commanding Officer Ben Keith

Rank: Commander

Commander Keith joined the Royal Navy in 1998. He took command of HMS Diamond in November 2016.

Previous units

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honor clarissima gemma – honour is the brightest jewel.

815 Naval Air Squadron

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HMNB Portsmouth

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Displacement: 8,000 tonnes; Length: 152m; Beam: 21.2m; Complement: 190

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