Fine sapphire ring

Set with a cushion-shaped sapphire weighing 13.26 carats, size 52.

Accompanied by SSEF report no. 72084 and Gübelin report no. 14010024, each stating that the cushion-shaped sapphire weighing 13.26 carats, is of Kashmir origin, with no indications of heating, together with appendix letters expressing the quality and rarity of this sapphire. Stamped Pt 950 for platinum. Sapphire blue of medium strong saturation, according to the SSEF report measuring 13.91 x 12.77 x 7.85mm, and according to the Gübelin report 13.91 x 12.77 x 7.84mm. The sapphire with good transparency, nearly clean to the naked eye, with typical inclusions visible under 10 x magnification; for further details on the stone, please refer to the gemmological reports. No signs of wear to the metal. In like-new condition. Gross weight approximately 7 grams.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Please note that colour, clarity and weight of gemstones are statements of opinion only and not statements of fact by Sotheby's. We do not guarantee, and are not responsible for any certificate from a gemological laboratory that may accompany the property. We do not guarantee that watches are in working order. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue, in particular to the Notice regarding the treatment and condition of gemstones and to the Notice regarding import of Burmese jadeite and rubies into the US.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

"The natural sapphire of 13.26 ct described in the above mentioned Gübelin Gem Lab Report 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," Gübelin appendix letter, 9 January 2014.