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183

Oscar Heyman & Brothers | Emerald, Black Opal and Diamond Necklace [祖母綠配黑色蛋白石及鑽石項鏈]

Captivated by Color: Important Jewels and Gemstones from an American Collector [華彩綺夢:美國重要珠寶及寶石珍藏]

Oscar Heyman & Brothers | Emerald, Black Opal and Diamond Necklace [祖母綠配黑色蛋白石及鑽石項鏈]

Oscar Heyman & Brothers | Emerald, Black Opal and Diamond Necklace [祖母綠配黑色蛋白石及鑽石項鏈]

Captivated by Color: Important Jewels and Gemstones from an American Collector

[華彩綺夢:美國重要珠寶及寶石珍藏]


Oscar Heyman & Brothers

Emerald, Black Opal and Diamond Necklace

[祖母綠配黑色蛋白石及鑽石項鏈]


Suspending an oval-shaped black opal measuring approximately 29.0 x 22.9 mm, capped by round diamonds, surmounted by an emerald cabochon and black opal measuring approximately 15.7 x 20.5 mm, the chain composed of emerald beads, decorated with two black opals measuring approximately 14.0 x 16.0 mm, accented by round diamonds,  length 16¾ inches, with maker's mark, numbered 601908.


Accompanied by a Certificate of Authenticity dated January 2013 from Oscar Heyman & Brothers.

In good condition, the mounting with signs of light wear including surface scratches, not noticeable when worn. Mounting stamped Irid Plat for iridium-platinum alloy. The opals, stated to weigh a total of 62.50 carats, are of dark gray body color, with even play-of-color in predominant hues of green, yellow-green and blue-violet, the surfaces with a few minor scratches, noticeable under 10x magnification. The emerald beads, stated to weigh a total of 91.50 carats, and the cabochon emerald stated to weigh 3.43 carats, are of medium to medium deep slightly bluish green to green, heavily included with surface-reaching inclusions, as is typical of cabochons and beads. The diamonds, stated to weigh a total of 5.80 carats, are approximately G-H color, VS clarity. Accompanied by a Certificate of Authenticity dated January 2013 from Oscar Heyman & Brothers.


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.