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

Christie’s has announced what is sure to be a blockbuster sale in the jewelry world: the sale of a 23.24-carat fancy Golconda ...

The Christie’s sale will offer the stone in a ring set by the singular Parisian designer JAR. Courtesy of Christie's The Golconda Blue Diamond in its setting by JAR. Over a decade after we first ...