A Single-Stone Diamond Ring. Photo Christie's Image Ltd 2013

The rectangular cut-cornered diamond weighing approximately 7.33 carats, to triangular-cut diamond shoulders and a plain hoop. Price Realized : $131,561

Accompanied by report no.5151355678 dated 5 April 2013 from The Gemological Institute of America (GIA), stating the 7.33 carat diamond is J Colour, VS2 Clarity, with no fluorescence 

Christie's. JEWELLERY. 5 June 2013. London, King Street