Sapphire and diamond necklace, first half of the 19th century

Composed of a series of alternating links set with cushion-shaped sapphires and cushion-shaped, circular-, single-cut and rose diamonds, the front suspending three detachable pendants featuring a pear- and a trapeze-shaped sapphire, length approximately 480mm, one small diamond deficient.

Accompanied by SSEF report no. 72812, stating that the fifteen sapphires are of Ceylon origin, with no indications of heating. Central pendant detaches in three places: at furthest bottom (detaching the pear-shaped rose-cut diamond), next detaching pear-shaped sapphire, next detaching circular-cut diamonds above pear-shaped sapphire. Pendants to either side also detach in two places: at furthest bottom (detaching the pear-shaped rose-cut diamond) and the cushion-shaped sapphire above it. Detachable pendants may have been added on other jewels, now deficient. Two further hooks for pendants in between the pendants. Mounted in silver and gold. According to the SSEF report, the sapphires weigh between approximately 4.40 to 31 carats, the total weight being approximately 170 carat, with measurements ranging from approximately 12.60 x 8.05 x 4.60 mm to approximately 24.65 x 19.30 x 7.65 mm, they are blue of medium to medium strong saturation, for further information please refer to the report; sapphire well matched in colour, good transparency with few crystal inclusions, some small nicks, scratches and abrasions. Diamonds estimated to weigh a total of approximately 12.00 - 14.00 carats (rose-cut diamonds not included), on average of various colours and clarities, as gauged and graded in mounting, one small diamond deficient. Clasp secure, safety chain. Signs of normal wear to the metal, scratches consistent with use. In good condition. Gross weight approximately 120 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.
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."