SAPPHIRE AND DIAMOND BROOCH, 1950S

Of scrolled ribbon design, set with circular-cut and oval sapphires and baguette diamonds, French assay mark for platinum, and French import assay mark for 18 carat gold, partial maker's mark, gross weight approximately 25.16 grams. 

Stamped with French assay mark for platinum, and French import assay mark for 18 carat, partial maker's mark, possibly for Rubel Frères. Sapphires mid to deep blue, transparent, with typical inclusions visible under magnification, some surface-reaching, some areas of minor chipping and wear to facet edges. Diamonds bright and lively, estimated colour L-M, estimated clarity VS on average. Estimated total diamond weight approximately 4.00 - 5.00 carats. Brooch fitting closing securely. Light scratches to stone and metal surfaces consistent with wear. In good condition. Overall dimensions approximately 58 x 32mm. Gross weight approximately 25.16 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."