Sapphire and diamond ring, late 19th century

Collet-set with an oval sapphire, the mount set with circular-cut diamonds, size N.

Accompanied by GCS, report no. 77113-06, stating that the sapphire is natural, with no indications of heating, origin opinion Madagascar. Measuring approximately 11.08 x 8.64 x 6.09mm Recently stamped 'S 5.60 ct' to the inside of the shank. The sapphire is pale blue, transparent with a visible window to the centre of the stone, some typical internal inclusions visible under magnification. Some minor chips to pavillion. Sapphire calculated to weigh approximately 3.90-4.30 carats. Estimated total diamond weight approximately 0.70-1.00 carats. Estimated clarity I. Mount recently polished with some light surface scratches. Overall 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.
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 a gemmological report.