An Important Sapphire And Diamond Ring. Photo Christie's Image Ltd 2012

Set with a cushion-shaped sapphire weighing approximately 10.66 carats, flanked by cushion-shaped diamonds weighing approximately 2.01 and 2.01 carats, mounted in platinum, ring size 5¾. Estimate HK$6,800,000 - HK$9,500,000 ($881,502 - $1,231,510). Price Realized HK$9,260,000 ($1,200,731)

Accompanied by report no. 65119 dated 3 october 2012 from the SSEF Swiss Gemmological Institute Stating that the approximately 11.00 carat carat sapphire is of Kashmir origin, with no indications of heating; also accompanied by an appendix stating that the sapphire possesses extraordinary characteristics and merits special mention and appreciation. The sapphire exhibits a notable weight, combined with an attractive velvety blue colour and a fine purity and cutting style. microscopic inspection represent the hallmarks of sapphires from the reputed deposit in Kashmir. In addition to these qualities, this sapphire has been spared exposure to heat treatment and its clarity and colour are thus all natural. a natural sapphire from Kashmir of this size and quality is rare and exceptional

Also accompanied by report no. 12095073 dated 7 september 2012 from the Gübelin Gemmological Laboratory stating that the 10.66 carat sapphire is of Kashmir origin, with no indications of heating; Also accompanied by an appendix stating that the natural Kashmir sapphire of 10.66 ct described possesses a richly saturated and homogeneous colour, combined with a high degree of transparency, and a finely proportioned cut. In addition, this remarkable gemstone has been spared thermal treatment. such a combination of characteristics is rare in natural Kashmir sapphires of this size

Also accompanied by report no. CS 50792 dated 14 august 2012 from the American Gemological Laboratories stating that based on available gemological information, it is the opinion of the laboratory that the sapphire weighing 10.66 carat is natural, the origin of this material would be classified as Kashmir, heat enhancement: none, clarity enhancement: none; also accompanied by a letter from AGL stating that the sapphire has received one of the most exclusive origin determinations issued by AGL: Kashmir. This sapphire possesses a high clarity, providing a superior degree of transparency. adding to the rarity of this gem is the absence of any gemological evidence of heat enhancement or clarity enhancement. Augmenting the significance of this particular kashmir sapphire is the fact that it is in excess of 10 carats, an important weight category, especially for Kashmir sapphires. In addition, a unique set of quality factors complements the rarity and desirability of this unusual gemstone

Report no. 2145966415 dated 24 august 2012 from the Gemological Institute of America stating that the 2.01 carat diamond is e colour, VVS2 clarity

Report no. 1142966399 dated 24 august 2012 from the Gemological Institute of America stating that the 2.01 carat diamond is f colour, VVS2 clarity

Christie's. Hong Kong Magnificent Jewels. 27 November 2012. Hong Kong