Live Auction 1371Jewels : The Geneva Sale
Christie’s roundel
Lot 207 THE PROPERTY OF A GENTLEMAN 

A RUBY AND DIAMOND RING, BY GRAFF

Closed18 November 2009

Price Realised

CHF 1,131,000

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A RUBY AND DIAMOND RING, BY GRAFF
Set with an oval-shaped ruby weighing 7.03 carats within a brilliant-cut diamond cluster surround to the heart-shaped diamond shoulders, mounted in platinum and gold, ring size 5¾, in a Graff dark blue leather case
Signed Graff
Accompanied by report and special note no. 0909101 dated 22 September 2009 from the Gübelin Gem Lab stating that the ruby is of Burmese origin with no indications of heating

Accompanied by report and special note no. 54632 dated 2 October 2009 from the SSEF Swiss Gemmological Institute stating that the ruby is of Burmese origin, with no indications of thermal enhancement, and that this gemstone was already described on Gemstone report no. 32585 dated 26 August 1998

Specialist note

The special notes from the laboratories highlight the quality and rarity of this gem.
'Large rubies of top gem-quality are true rarities of nature... During the last couple of years, the supply of gem-quality rubies decreased... As a result, large, natural, untreated rubies of almost any geographic origin have become even more difficult to find on the market today'.
Gübelin Gem Lab, 22 September 2009
'The natural ruby described...possesses extraordinary characteristics and merits a special mention and appreciation. The described gemstone of 7.035 ct exhibits a well-saturated colour combined with a pleasant clarity. The stone has been spared to exposure of thermal treatment and its clarity and colour are natural'.
SSEF Swiss Gemmological Institute, 2 October 2009