Emerald and diamond brooch, second half of the 19th century

Of ribbon bow design, set with oval emeralds and circular-cut and cushion-shaped diamonds, suspending an emerald drop, brooch fitting detachable.

Emeralds medium green, strong saturation, drop with surface reaching fissures and chips to surface, cushion-shaped emerald measuring approximately 12.4 x 11.3mm, depth not accessible, drop measuring approximately 14.3 x 11.6 x 6.0mm. Estimated total diamond weight approximately 4.80 - 5.20 carats, stones bright and lively. Scratches and tarnish to mount consistent with wear. Brooch and pendant fittings detachable. 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."