Lot 158. A magnificent fancy intense yellow diamond and diamond necklace, by Graff. Estimate 500,000 – $700,000. Price realised USD 785,000. Photo Christie's Image Ltd 2015

Designed as a graduated line of twenty-three oval-cut diamonds, alternating with cushion, modified square and modified rectangular-cut fancy intense yellow diamonds, centering upon a modified rectangular-cut fancy intense yellow diamond, weighing approximately 7.67 carats, mounted in platinum and yellow gold, with pendant hook for suspension, 16 ins. Signed Graff no. 4272

With report 12533054 dated 22 December 2014 from the Gemological Institute of America stating that the diamond, weighing approximately 7.67 carats, is fancy intense yellow, natural color, VS1 clarity, additional inscription: GIA 12533054, GRAFF

With twenty-two reports dated 5 August 2002 to 30 April 2003 from the Gemological Institute of America stating that the diamonds, weighing from approximately 4.07 to 1.01 carats, are fancy intense yellow, natural color, and range from Internally Flawless to SI2 clarity 

With twenty-one reports dated 12 July 1995 to 5 March 2003 from the Gemological Institute of America stating that the oval-cut diamonds, weighing from approximately 2.57 to 0.80 carats, range from D to G color and from Internally Flawless to VS2 clarity 

Christie's. MAGNIFICENT JEWELS, 14 April 2015, New York, Rockefeller Plaza