THREE balaclava-clad thugs who carried out a brazen daylight smash-and-grab at a family jeweller and stole £225,000 worth of gems have been caged.

Trio Deniz Mehmet, 28, Lee Ramsey, 46, and Robert Clarke, 50, , south west London, on January 31.

A street scene with two people smashing a storefront window with a sledgehammer.The thugs relentlessly smashed their way into the jewellery shop Credit: Metropolitan Police Two men smashing the window of a jewelry store with a sledgehammer to rob it.Once inside they heisted £225,000 worth of jewellery Credit: Metropolitan Police

They admitted conspiracy to rob and were each sentenced tor five years and three months at Kingston Crown Court yesterday (July 30).

The combined sentences total 15 years and nine months behind bars.

Shocking footage of the raid – which later went viral – showed the gang relentlessly battering their way into the family-run shop.

Witnesses watched in as one robber repeatedly hammered at the large front window until the glass finally gave way.

Deniz Mehmet, a man with a beard and receding hairline, wearing a gray shirt, in a mugshot.Deniz Mehmet, 28, has been caged Credit: Met Police Mugshot of a bald man in a blue hoodie looking forward.Lee Ramsey, 46, has been caged Mugshot of Robert Clarke.Robert Clarke, 50, has been caged Credit: Met Police A man with red cheeks and a tattooed arm lying in bed with his hands up, captured by a bodycam.Officers were able to track down the culprits by analysing CCTV footage Credit: Met Police

Another stood by clutching a large blue bag before the pair stuffed it with , bracelets and other jewellery from the smashed display.

Brave members of staff desperately tried to fend off the gang but were unable to stop them.

The thieves then fled on foot as stunned shoppers looked on, fearing for their own safety.

The robbery happened in Richmond, the picturesque London suburb where hit TV comedy is filmed.

Detectives from the Met’s Flying Squad launched a major , trawling through CCTV, carrying out forensic examinations and recovering a vehicle believed to be linked to the raid.

Their enquiries led officers to identify Mehmet, Ramsey and Clarke, who were arrested during a series of raids in Essex in March and April.

Body-worn camera footage released by showed officers storming Ramsey’s home in the early hours of March 31 before handcuffing him.

Clarke was arrested after officers woke him while he was in bed during the same operation.

A man in a grey t-shirt and light blue jeans sits on a bed with his hands cuffed behind his back, looking towards the camera.The moment cops arrest Ramsey Credit: Met Police Man in glasses putting on blue medical gloves.The moment cops cuff Clarke Credit: Met Police

Mehmet was later detained while walking along a street in Basildon on April 8.

The three men, from Rochford, Harlow and Basildon respectively, all pleaded guilty to conspiracy to rob.

Despite the convictions, none of the stolen jewellery has ever been recovered.

Detective Superintendent Dan Mitchell, from the Met’s Flying Squad, said: “Robberies of this kind cause real concern for residents and businesses in the communities that are targeted. It’s they who feel the immediate impact.

“These sentences mark a significant step in what has been a detailed and determined investigation.

“I hope they demonstrate our commitment to tackling smash-and-grab robberies in London by going after those involved, wherever they are.

“The groups responsible should be under no illusion – we will pursue you relentlessly and hold you to account.”

The family-run jeweller, which has served Richmond for more than 45 years, previously thanked the public for rallying behind the business following the raid.

A spokesman for Gregory & Co said: “We’re a local, independent, family jewellers and have been in Richmond for more than 45 years.

“The public response to this incident has been overwhelming and we are grateful for the support and kindness we’ve received.

“We are reassured that overall, good outweighs the bad.”