- 91
Black Opal and Diamond Brooch, René Boivin, Circa 1915
Estimate
20,000 - 30,000 USD
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Description
- René Boivin
The pentagon-shaped black opal measuring approximately 20.3 by 16.7 mm., the pear-shaped black opal measuring approximately 19.5 by 15.2 mm., old European-cut, single-cut and rose-cut diamonds weighing a total of approximately 2.40 carats, mounted in platinum, maker's mark, French assay mark, two diamonds missing. With fitted box signed Hunt & Roskell Ltd.
Condition
Several areas of repair to the mounting; 2 small rose-cut diamonds missing near the top of the pendant. The opal tablets remain in good condition with only minute crazing seen under magnification and very minor pitting. The opals are opaque and display strong, full-spectrum play-of-color of the "harlequin" type. Blues and green predominate in the top opal with oranges and reds predominating in the pendant. The old European-cut diamonds are approximately G-I color, VS-SI clarity; the single- and rose-cut diamonds are approximately near colorless and decorative in quality. Maker's mark found on the brooch fitting near the base of the pinstem. Brooch fitting mounted in 18 karat white gold. Accompanied by an associated Hunt & Roskell fitted box.
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.
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.