GEM SET AND DIAMOND NECKLACE, 'PLUME DE PAON', BOUCHERON

Designed as a peacock feather set throughout with circular-cut gemstones, including  tsavorites, spessartite garnets, sapphires, rubies, and brilliant-cut diamonds, one terminal set with a pear-shaped diamond, the other with a cushion-shaped sapphire weighing 40.88 carats, signed Boucheron, numbered, French assay mark for gold and maker's mark. 

Cf.: Vincent Meylan, Archives Secrètes Boucheron, Paris 2009, pg. 169 for an Illustration of the original necklace of peacock design, dated 1883.

Accompanied by Gübelin report no. 0505133, dated 23 May 2005, and SSEF report no. 102171, dated 6 September 2018, each stating that the cushion-shaped sapphire, weighing 40.88 carats, measuring 18.99 x 16.37 x 13.47mm, is of Ceylon origin, with no indications of heating. Signed BOUCHERON, numbered E02672, French maker's mark for Boucheron and assay mark for 18 carat gold. Various gemstones overall in good condition, minor abrasions. Cushion-shaped sapphire blue of medium strong saturation, with typical inclusions visible under magnification. For more information on the sapphire please refer to Gübelin and SSEF report. Pear-shaped diamond measuring approximately 2.87 x 1.01mm, depth not measurable, estimated to be J colour, VS-SI clarity, as gauged and graded in the mount. Remaining diamonds estimated to weigh a total of approximately 3.00 - 4.00 carats, on average H-I colour, VS clarity, as gauged and graded in the mount. Necklace flexible and feather slightly articulated. Minor evidence of wear to the metal. In very good condition. Gross weight approximately 225 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."

Accompanied by Gübelin report no. 0505133, and SSEF report no. 102171, each stating that the sapphire is of Ceylon origin, with no indications of heating.