ONYX, EMERALD, SAPPHIRE AND DIAMOND BROOCH, BOUCHERON, 1920S

Designed as a pierced oval plaque with scrolled ends, the centre collet-set set with a baguette diamond, the millegrain-bordered surround set with single- and circular-cut diamonds, calibré-cut sapphires and emeralds and two sections of polished onyx, signed Boucheron, French assay marks and indistinct maker's marks.

Signed Boucheron Paris, stamped with French assay mark for platinum and indistinct maker's mark. Estimated total diamond weight approximately 7.00 - 9.00 carats, including central diamond, estimated to weigh approximately 0.90 - 1.10 carats. Some areas of minor chipping to calibré-cut emeralds and sapphires, overall in good condition. Brooch and brooch pin very slightly warped. Onyx possibly later replaced. Overall dimensions approximately 71 x 34mm, gross weight approximately 20.6 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."