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.
Blue Topaz- A General Introduction. The Topaz is one of most popular gemstones in the world along with the Ruby, Diamond and Sapphire. It is available in wide range of colors but the golden orangish-yellow Topaz known as Imperial Topaz is the most expensive color of all.