Alexandrite and Diamond Ring

Centring on an oval alexandrite weighing approximately 4.55 carats, flanked on each side by an oval diamond, to the circular-cut diamond shoulders, the diamonds together weighing approximately 1.50 carats, mounted in platinum. Ring size: 6½

Colour and Clarity: According to the AGL report, the alexandrite is natural, of Brazilian origin, with no gemmological evidence of enhancements/treatments, shows prominent colour-change and the quality of colour-change is excellent. Please refer to the report for detalls. In our opinion, the alexandrite is of deep tone, eye-clean, and shows very strong colour change from blue-green in the daylight to red-purple in the incandescent light. Under the 10x loupe inspection, there are minor typical inclusions with one surface reaching to the crown facet, a few tiny pits at the facet junctions, but all not visible to the naked eye. The diamonds are about H to I colour, VS to SI1 clarity. Condition: Platinum ring mount, with minor hairline scratches, otherwise 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.
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 AGL report numbered CS 84612, dated 16 March 2015, stating that the 4.55 carat alexandrite is natural, of Brazilian origin, with a pronounced colour-change from blue-green in daylight to red-purple in incandescent light, with no gemological evidence of enhancements/treatment present.