An exquisite 4.44 carats cushion-cut diamond ring

Set with a cushion-cut diamond, weighing approximately 4.44 carats, to the pierced single-cut diamond gallery and hoop, mounted in platinum, ring size 6. Est. $150,000 - $250,000 - Sold $230,500

With report 0403174 dated 16 March 2004 from the Gübelin Gem Lab stating that the diamond is D color, internally flawless clarity

The diamond of 4.44 carats possesses an antique cutting style which is rarely encountered in the gem trade today. In addition, this diamond is classified as Type IIa (a chemically very pure type of natural diamond). It displays a colour and degree of transparency which are particular to these unique gemstones. Diamonds of this type, exhibiting an antique cutting style as well as a fine quality, are very rare and will most certainly evoke references to the historic term of "Golconda"

With report 13141225 dated 2 March 2004 from the Gemological Institute of America stating that the diamond is D color, internally flawless clarity

Christie's. Jewels: The New York Sale. 22 April 2009. New York, Rockefeller Plaza www.christies.com Photo: Christie's Images Ltd 2009