1 Monetary policy involves influencing the supply and demand for money through interest rates and other monetary tools.  Monetary policy is usually conducted by the Central Bank, e.g. UK â Bank of England, US â Federal Reserve.
The biggest yellow diamond, a 100-carat one, was sold in Geneva for $16.3 million. A private buyer acquired the Graff Vivid Yellow at a Geneva jewellery sale in Sotheby's auction house. Reuters reported that it was a world record for the jewellery auction of a yellow diamond, according to David Bennett, the chairman of Sotheby's Switzerland.
The world's biggest diamond depends upon your definition of 'world'. In fact the biggest diamond ever discovered was found floating in space at the core of a dead star. It is 2,500 miles wide and weighs 10 million trillion trillion carats, but at a distance of 50 light years from the Earth, it may be a little inaccessible to count for our purposes.