A colored diamond and diamond brooch. Photo Christie's Image Ltd 2014

Designed as a circular-cut colored diamond and diamond wreath, with baguette-cut diamond detail, mounted in platinum. Estimate $20,000 – $30,000

With report 1152783180 dated 23 December 2013 from the Gemological Institute of America stating that the diamond, weighing 0.32 carat, is natural fancy green, natural color, VS1 clarity

With report 2155783231 dated 23 December 2013 from the Gemological Institute of America stating that the diamond, weighing 0.35 carat, is fancy intense green-yellow, natural color, VS1 clarity

With report 2155783222 dated 23 December 2013 from the Gemological Institute of America stating that the diamond, weighing approximately 0.25 carat, is light pink-brown, natural color, I1 clarity

With report 2155783184 dated 27 December 2013 from the Gemological Institute of America stating that the diamond, weighing approximately 0.21, carat is fancy green, natural color, SI1 clarity

Christie's. MAGNIFICENT JEWELS, 16 April 2014, New York, Rockefeller Plaza - www.christies.com