Important fancy vivd yellow diamond pendent necklace

The fancy vivid yellow cut-cornered rectangular mixed-cut diamond weighing 32.53 carats suspended from a necklace set with brilliant- and step-cut diamonds, the clasp decorated with marquise-shaped stones, mounted in platinum and yellow gold, length approximately 440mm.

Stamped Pt for platinum and 750 for gold. Please note that the correct estimate is CHF 1'200'000-1'800'000, US$ 1'000'000-1'500'000. For any further information on the Fancy Vivid Yellow diamond, please refer to the report. The other 113 diamonds, varying in weight from circa 0.08-0.40ct with a total of circa 15.00-20.00 cts, are G-H colour and VS-SI clarity on average. The two step-cut diamonds weighing approximately 3.00cts each, H-I colour and SI clarity as graded and measured in the collet-set mount. With a safety catch to the clasp. Some normal signs of wear, overall in good condition.
"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."