The cushion-shaped ruby weighing 8.62 carats, set between triangular diamond shoulders within a mount decorated throughout with brilliant-cut diamonds, size 59, signed Graff, together with an alternative ring mount, Graff.
Accompanied by Gübelin report no. 11060194, dated 29 June 2011, and SSEF report no. 45948, dated 20 February 2006, both stating that the ruby is of Burmese origin, with no indications of heating. The SSEF report together with a letter stating:
"The Graff Ruby
...The described gemstones exhibits an impressive weight and purity, combined with a very pleasant shape and cutting style. The faint inclusions found by microscopic inspection represent the hallmarks of the reputed deposit of Mogok in Burma (Myanmar). The stone has been spared to exposure of thermal treatment and its clarity and colour are natural. Its vivid red, poetically referred to as 'pigeon blood' is due to a combination of well balanced trace elements in the stone, typical and characteristic for rubies of the Mogok gemstone tract.
Natural Mogok rubies from this size, colour and clarity represent a great rarity and the Graff ruby with its combination of outstanding characteristics is a very exceptional gemstone."
To be sold in
Geneva 12 November 2014
Hong Kong: 3 October – 6 October
Doha: 9 October - 11 October
London: 13 October – 22 October
Paris: 24 October – 26 October
New York: 31 October – 1 November
Geneva: 8 November – 12 November