Emerald and diamond necklace and a diamond brooch, circa 1910

The front of the necklace of garland, foliate and floral design, millegrain-set with circular- and single-cut diamonds, supporting five detachable pendants similarly set and further highlighted with step-cut and cushion-shaped emeralds and pear-shaped diamonds, the back of knife-edge linking millegrain-set with circular-cut diamonds, two additional links later added, length approximately 410mm, French assay and maker's marks; and a diamond pendant/brooch of similar design from which can be suspended three of the pendants, pendant hooks, French assay mark, additional brooch fittings; fitted case stamped Hessenberg & Co. 

Accompanied by SSEF report no. 84211, stating that the central step-cut emerald measuring approximately 14.50 x 11.70 x 5.35mm and calculated to weigh approximately 6.40 carats, is of Colombian origin, with a moderate amount of oil in fissures. French maker's mark, French assay marks for 18 carat gold. Emeralds well matched in colour, green of medium strong saturation, with good transparency, typical surface reaching inclusions, some abrasions and chips. Diamonds estimated to weigh a total of approximately 35.00 - 45.00 carats, on average H-L colour, VS-SI clarity, as gauged and graded in the mounting. Five pendants detachable, three of them may be worn together with the diamond brooch. Signs of normal wear to the metal, two additional links later added. In very 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."