Emerald and diamond brooch/pendant, 19th century

Centring on a step-cut emerald measuring approximately 21.50 x 18.10 x 12.05mm, framed by a scrolling motif highlighted with single-cut and rose diamonds, encircled by pinched collet-set cushion-shaped stones, partial French maker's mark, pendant fitting and detachable brooch pin.

Jewels from the Collection of Odile de Richelieu, Countess Gabriel de La Rochefoucauld, Princess de La Rochefoucauld (1879-1974). This brooch was given to Odile by her mother-in-law, the Countess Aimery de la Rochefoucauld, née Henriette de Mailly Nesle (1852-1913).

Partial French maker's mark 'R'. Mounted in silver and gold. According to the SSEF report the emerald, measuring approximately 21.50 x 18.10 x 12.05 mm and estimated to weigh approximately 33.00 carat, is of Colombian origin with a minor amount of oil in fissures, is a green of medium strong saturation; with good transparency, very slightly bluish green colour, with typical crystal inclusions, some surface reaching, with minor scratches and abrasions. Diamonds estimated to weigh a total of approximately 13.50 - 15.50 carats, of mixed colours and clarities, on average G-J colour, VS-SI clarity, as gauged and graded in mounting. Mounting with two pendant fittings and a detachable screw on brooch fitting. Signs of wear and tarnish to metal consistent with age and use. In good condition. Total gross weight approximately 31 grams. Please note that Sotheby's is not responsible for the accuracy of any estimated weights provided by gemmological certificates.
"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.
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