Sapphire and diamond necklace

Composed of two rows of sapphire beads alternating with gold rondelles, the front highlighted with oval diamonds and diamond rondelles, suspending a detachable pendant set with a pear-shaped sapphire weighing 9.91 carats, brilliant-cut and oval diamonds, the clasp set with a circular-cut sapphire and brilliant-cut diamonds, length approximately 390mm.

Accompanied by SSEF report no. 79837, stating that the sapphire measuring approximately 14.85 x 10.35 x 7.45mm, is of Ceylon origin, with no indications of heating. French assay mark for gold. Inscribed S. 9.92 and S.0.62, referring to the carat weights of the pear-shaped sapphire and the circular-cut sapphire on the clasp. Necklace with French assay mark and stamped OR 750 for 18 carat gold. Inscribed S.97.45, referring to the total carat weight of the sapphire beads, B.2.09 and B. 2.97, referring to the total carat weight of the brilliant-cut and oval diamonds. Pear-shaped sapphire on the pendant blue of medium strong saturation, with good transparency, some typical inclusions, a few nicks; for further details on the sapphire, please refer to the SSEF report. Pendant detachable. Sapphire beads on the necklace well matched in colour, blue of medium strong saturation, with typical surface reaching inclusions, cavities and nicks. Diamonds stated to weigh a total of 5.06 carats, on average G-H colour, VS clarity, as graded in the mount. Signs of normal wear to the metal consistent with use. In good condition. Gross weight approximately 38 grams.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. 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. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.Certificates of Authenticity: Various manufacturers may not issue certificates of authenticity upon request. Sotheby's is not under an obligation to furnish the purchaser with a certificate of authenticity from the manufacturer at any time. Unless the requirements for a rescission of the sale under the Terms of Guarantee are satisfied, the failure of a manufacturer to issue a certificate will not constitute grounds to rescind the sale. Gemological Certificates and Reports: References in the catalogue descriptions to certificates or reports issued by gemological laboratories are provided only for the information of bidders, and Sotheby's does not guarantee and accepts no responsibility for the accuracy, terms or information contained in such certificates or reports. Please also note that laboratories may differ in their assessment of a gemstone (including its origin and presence, type and extent of treatments) and their certificates or reports may contain different results.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.