Natural pearl and diamond hat pin, late 19th century

Set with a semi-baroque natural pearl measuring approximately 12.50 x 12.60 x 22.40mm, highlighted with circular-cut and rose diamonds, length approximately 107mm, French assay and partial maker's marks.

Stamped with French assay mark for 18 carat gold. Stamped with French partial maker's mark and twice numbered 4 on foliate pearl base. According to the SSEF report, the pearl measures approximately 12.50 - 12.60 x 22.40 mm, light greenish-grey and rosé overtones, good lustre, for further information, please refer to the SSEF report. Diamonds bright and lively. Light scratches to stick-pin consistent with age and wear. 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."