Impressive fancy coloured diamond and diamond parure

Comprising: a necklace collet-set with an oval fancy deep brown-yellow diamond weighing 58.17 carats within a frame of circular-cut diamonds, to a line of cushion-shaped diamonds similarly set, the clasp accented with oval, brilliant-cut and pear-shaped diamonds of brown tint, supporting a pendant set with a pear-shaped fancy brown-yellow diamond weighing 44.08 carats, length approximately 505mm, pendant detachable, may be worn as a brooch, a bracelet set with an oval fancy brown-orange diamond weighing 36.35 carats, length approximately 185mm, together with two extensions, total length approximately 225mm, a brooch set with a cushion-shaped diamond of yellow tint, may be worn as a pendant, a pair of earrings, each supporting a detachable pendant, post and hinged back fittings, and a ring set with an oval fancy deep brown-yellow diamond weighing 18.24 carats, size 54^1/2.

Accompanied by five GIA reports:no. 2181816515, stating that the oval diamond weighing 58.17 carats, measuring 31.09 x 22.64 x 13.02mm, is Fancy Deep Brown-Yellow, Natural Colour, SI2 Clarity; no. 6187816510, stating that the pear-shaped diamond weighing 44.08 carats, measuring 31.51 x 20.13 x 12.87mm, is Fancy Brown-Yellow, Natural Colour, VS2 Clarity;no. 2181816519, stating that the oval diamond weighing 36.35 carats, measuring 29.71 x 17.62 x 10.06mm, is Fancy Brown-Orange, Natural Colour, VS2 Clarity;no. 6187816536, stating that the cushion-shaped diamond weighing 18.84 carats, measuring 16.03 x 15.90 x 11.13mm, is N Colour, VS2 Clarity;no. 2181816501, stating that the oval modified brilliant-cut diamond weighing 18.24 carats, measuring 20.18 x 14.38 x 8.14 mm, is Fancy Deep Brown-Yellow, Natural Colour, SI2 Clarity.Please note that the remaining diamonds of yellow and brown tints have not been tested for natural origin.Each piece with maker's marks, stamped Pt 950 for platinum and OR for gold. For more information on the five tested diamonds, please refer to the GIA reports. Remaining diamonds of yellow and brown tint estimated to weigh a total of approximately 80.00 - 85.00 carats, on average VS-SI clarity, few I, as gauged and graded in the mount. Remaining near-colourless diamonds estimated to weigh a total of approximately 360.00 - 375.00 carats, on average I-K colour, VS-SI clarity, few I, as gauged and graded in the mount. Small signs of wear and scratches to the metal. In very good condition. Total gross weight approximately 754 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."