Sapphire and Diamond Ring, Harry Winston

Set with a cushion-shaped sapphire weighing 16.57 carats, decorated with calf-head-cut diamond weighing approximately 1.20 carats, mounted in platinum, signed Winston. Ring size: 7½

Accompanied by Gübelin report numbered 16075112, stating that the sapphire weighing 16.57 carats is natural, of Sri Lankan (Ceylon) origin, with no indications of heating. Please refer to the report for further details. Signed Winston and stamped PT950 for platinum. Sapphire blue of medium saturation and lively, with minor typical inclusions and one surface reaching, visible of silk inclusions at certain angle but overall eye clean, with minor abrasions, tiny chips and nicks. Diamonds are about I-J colour, VS-SI clarity, as graded in the mounting. Signs of very minor wear to the 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 Gübelin report numbered 16075112, dated 11 August 2016, stating that the 16.57 carat sapphire is natural, of Sri Lankan (Ceylon) origin, with no indications of heating.