Fine emerald and diamond bracelet/brooch combination, second half of the 19th century

Set with a carved emerald depicting Medusa within entwined snakes embellished with circular-, single-cut and rose diamonds, the eyes set with circular-cut pink sapphires, on a gold bangle,  inner circumference approximately 150mm, central motif detachable, wearable as a brooch, brooch fittings.

Accompanied by SSEF report no. 97940 stating that the emerald measuring approximately 29.90 x 23.50 x 16.15mm, is of Colombian origin, with a minor amount of oil in fissures. Emerald green of strong saturation with good transparency, typical inclusions visible to the naked eye, some surface reaching. For more information on the emerald please refer to SSEF report. Diamonds estimated to weigh a total of approximately 2.00 - 2.20 carats, on average J-K colour, SI clarity, as gauged and graded in the mount. Evidence of light wear, small signs of tarnish consistent with age. Clasp secure, security chain. In overall very good condition. Total gross weight approximately 57 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."

Accompanied by SSEF report no. 97940, stating that the emerald is of Colombian origin, with a minor amount of oil in fissures.