Two natural pearl and diamond rings, late 19th century

One set to the centre with a button-shaped natural pearl measuring approximately 7.94 x 7.97 x 6.85mm, within a surround of millegrain-set rose diamonds, size 48, partial French assay and maker's marks, the other set to the centre with a light greyish brown natural pearl measuring approximately 11.20 x 11.54 x 10.83, between shoulders each millegrain-set with three circular-cut diamonds, size 54, partial French assay mark.

One ring stamped with French assay marks for gold, partial maker's mark. According to the SSEF report, the button-shaped pearl measuring 7.94 – 7.97 x 6.85 mm, slightly cream body colour with green overtones, half-drilled. Few scratches and pits, good skin, good lustre, for more information on this pearl please refer to the SSEF report. Diamonds bright and lively. The other ring stamped with French assay mark for platinum, partial maker's mark. According to the SSEF report the button-shaped pearl, half-drilled with the base partially worked, measuring 11.20 – 11.54 x 10.83 mm, light greyish brown colour, no indications of artificial colour modification. The diamonds estimated to weigh a total of less than 0.50 carats, some abrasions, bright and lively. Signs of normal wear to the metal consistent with age. 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."