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.
Here we look at some of the most expensive jewels in the world, and the dramatic stories attached to them. Great Star of Africa. At 530.4 carats, the Great Star of Africa is the largest polished white diamond in the world â and was cut from the 3,106 carat Cullinan, the largest diamond crystal ever found.