Important diamond ring, Graff

Set with a step-cut diamond weighing 15.15 carats, between tapered baguette diamonds, size 49, signed Graff.

Accompanied by GIA report no. 10312408, dated 31 March 2014, stating that the step-cut diamond weighing 15.15 carats and measuring 18.20 x 12.19 x 7.86mm, is D Colour, Internally Flawless, together with a Type IIa classification letter. Please note that the certificate is dated 2014 and might require an update. Signed GRAFF. Inscribed DIF referring to the colour and clarity of the central diamond. Tapered baguette diamonds bright and lively. Little signs of wear to the metal. In very good condition. Gross weight approximately 10 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."