Fancy intense yellow diamond ring

Set with a cut-cornered rectangular modified brilliant-cut fancy intense yellow diamond weighing 16.51 carats, between triangular diamond shoulders, size 51.

Accompanied by GIA report no. 5171056093, stating that the cut-cornered rectangular modified brilliant-cut diamond weighing 16.51 carats and measuring 16.18 x 14.81 x 8.46mm, is Fancy Intense Yellow, Natural Colour, VS2 Clarity. Stamped 750 for 18 carat gold, mounted in yellow gold. For more information on the diamond, please refer to the GIA report. Triangular diamonds estimated to weigh a total of approximately 2.75 - 3.25 carats, on average G-H colour, SI clarity, as gauged and graded in the mount. Scratches to the metal consistent with use. In very good condition. Gross weight approximately 9 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.
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."