Lot Essay
US$600,000-850,000
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Details
A RARE SAPPHIRE AND DIAMOND RING, BY GÜBELIN
Centering upon a cushion-shaped sapphire weighing approximately 10.50 carats, within a pavé-set diamond frame, enhanced by six brilliant-cut diamonds weighing from approximately 0.68 to 0.65 carat, to the similarly-cut diamond gallery and half-hoop, mounted in 18k white gold, ring size 5½, in blue Gübelin case and pouch
With maker's mark for Gübelin, No. 60A
Accompanied by report no. 65893 dated 23 November 2012 from the SSEF Swiss Gemmological Institute stating that the 10.50 carat sapphire is of Kashmir origin, with no indications of heating
Also accompanied by report no. 12100139 dated 29 October 2012 from the Gübelin Gemmological Laboratory stating that the 10.50 carat sapphire is of Kashmir origin, with no indications of heating
Also accompanied by report no. GRS2012-092065 (Platinum Rarity Award No. 843) dated 25 September 2012 from the Gem Research Swiss Lab stating that the 10.50 carat sapphire is of Kashmir origin, cornflower blue colour, with no indication of thermal treatment
Six reports dated from 12 April 2012 to 13 March 2013 from the Gemological Institute of America stating that the brilliant-cut diamonds weighing from 0.68 to 0.65 carat are G colour, VS1 clarity
Centering upon a cushion-shaped sapphire weighing approximately 10.50 carats, within a pavé-set diamond frame, enhanced by six brilliant-cut diamonds weighing from approximately 0.68 to 0.65 carat, to the similarly-cut diamond gallery and half-hoop, mounted in 18k white gold, ring size 5½, in blue Gübelin case and pouch
With maker's mark for Gübelin, No. 60A
Accompanied by report no. 65893 dated 23 November 2012 from the SSEF Swiss Gemmological Institute stating that the 10.50 carat sapphire is of Kashmir origin, with no indications of heating
Also accompanied by report no. 12100139 dated 29 October 2012 from the Gübelin Gemmological Laboratory stating that the 10.50 carat sapphire is of Kashmir origin, with no indications of heating
Also accompanied by report no. GRS2012-092065 (Platinum Rarity Award No. 843) dated 25 September 2012 from the Gem Research Swiss Lab stating that the 10.50 carat sapphire is of Kashmir origin, cornflower blue colour, with no indication of thermal treatment
Six reports dated from 12 April 2012 to 13 March 2013 from the Gemological Institute of America stating that the brilliant-cut diamonds weighing from 0.68 to 0.65 carat are G colour, VS1 clarity
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