The cushion-shaped sapphire weighing 11.55 carats, flanked by 6 baguette diamonds, mounted in platinum, size 6½, signed T&HM.  With signed box.

Good condition with wear to the mounting. Please refer to AGTA report no. 98007311 stating natural sapphire; no indications of heating. The dichroic sapphire displays a vibrant "cobalt" blue alternating with a slightly steely blue. Eye clean. Diamonds are approximately H-I color, VS clarity. The "T" and "&" to the signature are worn. Numbered 4382 to shank interior. Trabert & Hoeffer -Mauboussin, was the "American" Mauboussin. The French firm Mauboussin closed its New York premises in 1929 but established a partnership with the American firm Trabert & Hoeffer in 1936.
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 AGTA report no. 98007311 stating natural sapphire; no indications of heating.