• Jewels: The New York Sale, wit auction at Christies

    Sale 2306

    Jewels: The New York Sale, with The Catherine the Great Emerald Brooch and The Emperor Maximilian Diamond

    22 April 2010, New York, Rockefeller Plaza

  • Lot 276


    Price Realised  

    Set with a cushion-cut diamond, weighing approximately 20.06 carats, the prongs, gallery and hoop decorated with circular-cut diamonds, mounted in platinum, ring size 5½
    With report 14143319 dated 2 February 2005 from the Gemological Institute of America stating that the diamond is D color, internally flawless clarity, with excellent polish and excellent symmetry

    Accompanied by a supplemental letter dated 19 January 2010 from the Gemological Institute of America stating that the diamond has been determined to be a Type IIa diamond. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency. Type IIa diamonds were first identified as originating from India (particularly from the Golconda region) but have since been recovered in all major diamond-producing regions of the world. Among famous gem diamonds, the 530.20 carat Cullinan and the 105.60 carat Koh-i-noor, are examples of Type IIa

    With dossier dated 2 March 2005 from Stephen C. Hofer, Fancy Colour Diamond Consultants, attesting to the rarty and importance of this D color, internally flawless, Type IIa diamond

    Contact Client Service
    • info@christies.com

    • New York +1 212 636 2000

    • London +44 (0)20 7839 9060

    • Hong Kong +852 2760 1766

    • Shanghai +86 21 6355 1766

    Contact the department

    Pre-Lot Text