A coloured diamond and diamond ring, by Bulgari. Photo Christie's Image Ltd 2014

The marquise-cut fancy intense yellow diamond weighing approximately 3.56 carats, flanked by baguette-cut diamonds, to the pavé-set brilliant-cut diamond tapered half-hoop, mounted in platinum, ring size 5¾. Signed Bulgari. Estimate HK$400,000 – HK$600,000 ($51,845 - $77,768)

Accompanied by report no. 2155767425 dated 6 November 2013 from the Gemological Institute of America stating that the 3.56 carat diamond is fancy intense yellow, natural colour, VS2 clarity

Christie's. HONG KONG MAGNIFICENT JEWELS, 27 May 2014, Convention Hall - http://www.christies.com/