A colored diamond necklace. Photo Christie's Image Ltd 2014

Designed as a graduated line of eighty-one modified cut-cornered rectangular-cut light yellow to fancy yellow diamonds, weighing from approximately 4.45 to 0.31 carats, mounted in 18k gold, 15¾ ins. Estimate $200,000 – $300,000

With seven reports dated 25 April to 2014 to 2 May 2014 from the Gemological Institute of America stating that the diamonds, weighing from approximately 4.45 to 2.07 carats, range from fancy yellow to Y to Z color and from VS1 to VS2 clarity 

Christie's. IMPORTANT JEWELS,10 June 2014, New York, Rockefeller Plaza - http://www.christies.com/