Alexandrite and Diamond Ring

Set with a marquise-shaped alexandrite weighing 0.91 carat, surrounded with circular-cut alexandrites stated to weigh approximately 1.85 carats in total, to the circular-cut diamond-set frame and shoulders, mounted in platinum. Ring size: 6¼

Accompanied by Gübelin report numbered 16011080, stating that the 0.91 carat alexandrite is natural, of Brazilian origin, with no indications of treatment and displays a strong colour-change. Please refer to the report for further details. Inscribed PT950 for platinum, and 0.91ct, A1.85ct and D0.60ct referring to the weight of the alexandrites and diamonds. Alexandrites of medium dark tone and medium strong saturation, well-matched and display strong colour-change phenomenon, from bluish green in daylight to purple under incandescent light, with typical inclusions and a few are surface reaching, a few minor chips. Diamonds are on average G to I colour, VVS to VS clarity, as graded in the mounting. Signs of very minor wear to the metal, overall in excellent 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 16011080, dated 11 February 2016, stating that the 0.91 carat alexandrite is natural, of Brazilian origin, with no indications of treatment and displays a strong colour-change.