13 November 2012
Estimate On Request
THE ARCHDUKE JOSEPH DIAMOND
The unmounted cushion-shaped diamond weighing approximately 76.02 carats, in purple leather fitted box
Accompanied by report no. 5151001770 dated 14 September 2012 from the GIA Gemological Institute of America stating that the diamond is D colour, Internally Flawless clarity; a letter indicating that the diamond is Type IIa; a GIA monograph and a letter dated 1 October 2012 stating that 'to date the Archduke Joseph Diamond is the largest D-color, Internally Flawless diamond we have graded from the historic Golconda region'.
Letter dated 12 June 2007 from the GIA Gemological Institute of America stating that 'upon examination, prior to and after re-cutting, we can confirm that the 76.02 carat diamond was cut from the diamond known as the 'Archduke Joseph Diamond''
Report no. 12090150 dated 26 September 2012 from the Gübelin GemLab stating that the diamond is D colour, Internally Flawless clarity, and a Note indicating that the diamond is Type IIa; also with an Appendix stating that the diamond is 'blessed with a purity of colour and high degree of transparency, which are particular to the world's finest natural type IIa diamond (the purest type in terms of chemistry). Diamonds of this type and size, displaying such a superior quality as well as an antique cutting style, are extremely rare and will unequivocally evoke references to the historic term of 'Golconda''
Contact Client Service
New York +1 212 636 2000
London +44 (0)20 7839 9060
Asia +852 2760 1766
A 360-degree preview of our Hong Kong Autumn Auctions, featuring Asian 20th-century and contemporary art, Chinese paintings, jewels, watches and more
As Christie’s showcases jewels by Venyx, its founder and creative director reveals her inspirations and her secrets to running a successful business
The Archduke Joseph Diamond realized CHF20,355,000 ($21,506,914) achieving a world auction record for a colourless diamond in the Magnificent Jewels & The Archduke Joseph Diamond sale in Geneva on 13 November 2012.
Rahul Kadakia, Head of Department and Senior Vice President, Jewelry, discusses The Archduke Joseph Diamond, a 76.02 carat cushion-shaped diamond of D colour and internally flawless clarity to be offered in the Geneva Magnificent Jewels sale on 13 November 2012.
From rubies and emeralds to rare coloured diamonds — specialist David Warren offers an expert guide
Rubies command higher prices per carat than any other gemstone apart from coloured diamonds. And these are the very best
Four decades on from the founding of Alpina Wine, Germany’s pre-eminent wine merchant, Christie’s offers 675 lots from its distinguished cellars
As this superb Annunciation comes to auction on 29 October in New York, we talk to the curator of a new UK exhibition of the 16th-century Antwerp painter