8 June 2006
AN ART DECO SAPPHIRE AND DIAMOND RING
Set with a sugarloaf cabochon, within an old European-cut diamond surround, mounted in platinum, circa 1920
With report 95011909 dated 18 May 2006 from the AGTA Gemological Testing Center stating that the data obtained during the examination of this stone indicates that the probable geographic origin is Kashmir. No indications of heating.
With report CS38186 dated 22 February 2006 from the American Gemological Laboratories stating that it is the opinion of the Laboratory, based on the weight of evidence, that the origin of this material would be classified as Kashmir. No gemological evidence of heat enhancement present. Clarity Enhancement: None
Contact Client Service
New York +1 212 636 2000
London +44 (0)20 7839 9060
Asia +852 2760 1766
Please note that this lot is also accompanied by a report from the AGTA Gemological Testing Center stating that the sapphire is of Kashmir origin and shows no indications of heating.
Daphne Lingon, Head of Jewellery at Christie’s in New York, on the 'dramatic' ring with which David Rockefeller proposed to Peggy in 1940
Senior International Jewellery Director and cufflink aficionado David Warren admires 20 exquisite pairs of gem-set cufflinks, offered in London on 13 June
Featuring pieces from one of the finest collections of Oscar Heyman & Brothers jewellery ever to come to auction
A primer on the jewellers who cast aside Art Nouveau’s nature-inspired forms in favour of an aesthetic that celebrated modernity and technology
As Christie’s offers 178 works from his personal collection, the illustrator of Charlie and the Chocolate Factory offers us a glimpse of his creative process
Christie’s is auctioning some of Thomas Chippendale's most iconic designs, 300 years since the birth of Britain’s most famous furniture maker