A diamond called the Pink Star has fetched a record price for a gemstone by selling for $83m at an auction in Geneva.

Sir Hector Sants, Barclays' head of compliance and former Financial Services Authority boss, resigns from the bank after suffering from stress.

Changes to specific cells in the retina can help diagnose and track the progression of Alzheimer's disease, scientists say.

Germany is under review by the European Commission to see if its international trade surplus is hampering Europe's economic recovery.

The French government presents US singer Bob Dylan with the country's highest award, the Legion of Honour, in a brief ceremony in Paris.

The Unite union remains Labour's largest financial backer, new figures show, despite the fall-out from the Falkirk candidate selection row.

Provisional figures from the World Meteorological Organization show 2013 to be one of the hottest on record.

A hacker has pleaded guilty to breaking into Miss Teen USA and other young women's computers and taking compromising photos of them.