From sparkling multi-million-dollar diamonds to custom designs, here are the most expensive diamond rings in the world that redefines luxury.

Jean Schlumberger, the Alsace-born jewellery designer who conjured jewels for Tiffany & Co, was a famously good cook. So much ...

The fancy vivid yellow diamond is internally flawless and set in a pendant. It will appear at the Geneva Jewels Auction: IV on 12 May. The auction will feature jewellery from various well-known ...