Centring on a black opal weighing 18.83 carats, surrounded by pear-shaped diamonds together weighing approximately 4.45 carats, mounted in platinum. Ring size: 5¾

Colour and Clarity: According to GRS report, the black opal is natural, of Australia origin, with no indications of treatment. Please refer to the report for details. In our opinion, the opal has nice high dome, semi-translucent, of medium dark blue body colour with prominent green, blue and orange play-of-colour. Diamonds are about E to G colours, VS clarity. Condition: Platinum ring mount, signs of normal wear to the ring mount, 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 GRS report numbered GRS2014-069077, dated 25 June 2014, stating that the 18.83 carat opal is natural, of Australian origin, with no indication of treatments.