Rishi Sunak wants to make sure "Russia pays a price" for starting the war in Ukraine.
Rishi Sunak is determined to make Russia pay for the conflict in Ukraine
The UK Prime Minister is in attendance at the G7 summit in Hiroshima, Japan, and says that Britain is leading the way against Vladimir Putin as he announced fresh sanctions targeting Russian exports.
Russian diamond imports to the UK are among the items that will be banned by the government as the industry was worth $4 billion to Moscow in exports in 2021.
Russian-origin copper, aluminum and nickel imports are also set to be blocked and Sunak hopes that other leaders follow Britain's stance.
The Prime Minister told the BBC: "We believe in democracy, freedom, the rule of law - and it's right that we stand up for these things.
"I'm hopeful and confident that our partner countries will follow as they have done when we've done this previously.
"That will make the sanctions more effective, ensure that Russia pays a price for its illegal activity."
The UK government is planning to target 86 more people and companies connected to Putin, including those who are "actively undermining the impact of existing sanctions".
Since Russia launched its invasion last year, Britain has targeted over 1,500 individuals and entities and frozen more than £18 billion in assets under the sanctions regime.
Downing Street has confirmed that more than 60 per cent of Putin's war chest - worth about £275 billion - has been "immobilised".