Sapphire and Diamond Demi-Parure, Michael Youssoufian

Comprising: a necklace composed of thirty-one multi-coloured sapphires, spaced by circular-cut diamonds; and a bracelet of similar design; the sapphires and diamonds weighing approximately 180.00 and 20.11 carats in total respectively, mounted in 18 karat white gold, necklace signed MY and Michael Youssoufian's maker's mark, necklace and bracelet length approximately 860mm and 170mm respectively, can be joined and worn as one necklace.   (2)

Accompanied by International Gemological Institute Identification report numbered M3J31259, stating that the sapphires, purple sapphires and pink sapphires are all natural with no indication of thermal enhancement. Report also states the sapphires' inclusion pattern suggested origin Burma. For further details, please refer to IGI report. Necklace signed MY, with maker's mark for Michael Youssoufian and stamped 750 for 18 karat white gold. Bracelet unsigned. Sapphires, purple sapphires and pink sapphires estimated to weigh approximately 57.00 carats, 96.00 carats and 29.00 carats respectively, are medium to medium dark tone of moderate to good saturation with typical inclusions, some surface reaching under 10X magnificaton, generally not noticeable when worn. Diamonds estimated to weigh approximately 20 carats, range from H to light yellow in colour, about SI to I clarity as gauged and graded in the mount. Metal 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. 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.

Accompanied by IGI report numbered M3J31259, dated 25 November 2015, stating that the sapphires are natural, with no indication of thermal enhancement.