Experts warn that whilst the criminals may yet be caught, the gemstones they stole may never be recovered.
Most Recent Articles
Fining firms for sewage spills will get 'quicker and easier', says government
The plans would see automatic fines for some offences and the burden of proof lowered for others.
Can shampoo repair hair? Four haircare myths get the chop
There are countless hair products and hacks circulating. Two trichologists bust four common haircare myths.
Ukraine hits Russian chemical plant with UK-made Storm Shadow missiles
The Bryansk facility produced gunpowder, explosives and rocket fuel components, Ukraine's military says.
The Papers: 'Problems pile up for Reeves' and 'a kiss from Carla'
Reported budget leaks and ex-French president Sarkozy beginning his prison term make the papers.
Why Trump made breakthrough in Gaza but can't with Putin over Ukraine
The leaders' cancelled summit is just the latest twist in Trump's efforts to broker an end to the war, writes Anthony Zurcher.
Effects of antidepressants on physical health ranked for first time
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The £5.30 orange juice that tells the story of why supermarket prices are sky high
Butter, chocolate, coffee and milk have all seen prices rocket. Tracing back through the story of one particular supermarket staple begins to explain why
43 goals, five reds, six penalties - one blockbuster evening
BBC Sport looks at the statistics behind a wildly eventful evening in the Champions League.
Our biggest competition is screens at home, says theme park boss
Merlin Entertainments Fiona Eastwood sits down for the BBC's Big Boss Interview.
Arrests after violent protest outside Dublin migrant hotel
Police officers were attacked with missiles and fireworks after violence flared outside a hotel used to house asylum seekers.
Gyokeres makes Arsenal a much better team - Arteta
Viktor Gyokeres ends a seven-game run without a goal by scoring twice against Atletico Madrid - and Mikel Arteta says the forward makes Arsenal "much better".
How Newcastle's other forwards stepped up in Champions League
Newcastle United have relied on Nick Woltemade to score goals in the Premier League, but Anthony Gordon and Harvey Barnes stepped up in the Champions League win against Benfica.
Who is paying for Trump's White House ballroom?
A former White House chief ethics lawyer described the ballroom donations as an ethical "nightmare".
Trump says he did not want 'wasted meeting' after plan for Putin talks shelved
The comments by the US president come after plans to meet his Russian counterpart over the war in Ukraine were put on hold.
British officers sent to Israel to help monitor Gaza ceasefire
A small number of British planning officers has been sent to Israel to join a US-led multinational taskforce.
Chris Mason: Labour feel the heat in crucial Welsh by-election test
Polling and the mood within the parties suggest something is up in Caerphilly, writes political editor Chris Mason.
Israel receives two bodies Hamas says are dead hostages
Two coffins were handed over by Hamas to the Israeli military via the Red Cross in Gaza on Tuesday.
What did we learn from Rohl's Rangers unveiling?
Danny Rohl understands the need to win quickly as Rangers head coach and says he can handle pressure, as chief executive Patrick Stewart and sporting director Kevin Thelwell come under fire.
Has the Amazon Web Services outage shown we rely too much on US big tech?
Monday's enormous outage has sharpened the debate over whether the world is too reliant on a few US firms.
Stolen Louvre jewellery worth £76m, prosecutor says
The historic items were taken in broad daylight and are now feared to have been broken down for parts.