Diamond ring, Harry Winston

Set with a pear-shaped diamond weighing 11.53 carats, between tapered baguette diamond shoulders, size 53^1/2, signed Winston, maker's mark, pouch stamped Harry Winston. 

Accompanied by GIA report no. 2175717966, stating that the modified pear brilliant-cut diamond weighing 11.53 carats and measuring 23.72 x 12.55 x 5.86mm, is D Colour, VVS2 Clarity, together with a working diagram stating that the diamond is improvable. Signed WINSTON, maker's mark for Jacques Timey. Stamped PLATINUM and Pt 950 for platinum. Inscribed 11.53, referring to the carat weight of the central diamond. For further details on the pear-shaped diamond, please refer to the GIA report. Side diamonds bright and lively. Little signs of wear to the metal. In very good condition. Gross weight approximately 9 grams. Pouch stamped Harry Winston.
"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."