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 largest diamonds was discovered in the Mbuji-Mayi district of Zaire (Democratic Republic of the Congo) in 1990 in alluvial deposits; uncut, it was 777 carats (155.4 g). It was purchased by De Beers during the height of the countryâs Civil War that took place in the early to mid-nineties.