A diamond 'Toi et Moi' ring, by Bulgari. Photo Christie's Image Ltd 2013

Set with two cushion-shaped diamonds, weighing approximately 4.03 and 4.01 carats, to the tapered baguette-cut diamond shoulders, mounted in platinum, ring size 6, in grey fabric Bulgari pouch. Signed Bulgari. Estimate CHF145,000 – CHF190,000

Accompanied by report no. 16792215 dated 28 January 2008 from the GIA Gemological Institute of America stating that the 4.03 carat diamond is G colour, VS2 clarity

Report no. 16319796 dated 22 October 2007 from the GIA Gemological Institute of America stating that the 4.01 carat diamond is G colour, VS2 clarity

Please note that the reports are more than 5 years old and might require an update

Christie's. MAGNIFICENT JEWELS. 15 May 2013. Geneva