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.
In 2000, De Beers and the Steinmetz Group unveiled 'The Millennium Star', a 203.4 carat, D-colour, internally and externally flawless pear-shaped diamond, arguably the most va â¦ luable diamond in the world. It is currently exhibited at the Millennium Dome in London.