Group of three colored stone and diamond brooches, Circa 1930

The diamond brooch set with old European-cut diamonds weighing approximately 2.25 carats, mounted in platinum; the amethyst and diamond brooch set with calibré-cut amethysts and old European-cut and single-cut diamonds weighing approximately 1.60 carats, mounted in platinum; and the sapphire and diamond brooch set with marquise-shaped, old European-cut and single-cut diamonds weighing approximately 1.00 carat, mounted in platinum.

The all-diamond brooch set with 107 old European-cut diamonds approximately H-J color and VS-SI clarity. The amethyst and diamond brooch set with 7 calibré-cut amethysts (two are slightly chipped) and 37 old European and single-cut diamonds approximately I-J color and SI clarity. The sapphire and diamond brooch set with 2 marquise-shaped and 28 old European and single-cut diamonds approximately I-J color and VS-SI clarity. All pieces in good condition. This piece was a present from Arnold H Goss to his wife around 1930. Mr. Goss was Secretary of Buick around 1914, President of Chevrolet Motor Cars, President of Kelvinator (the world's largest maker of electric refrigerators in the 1910s) and renowned cattle rancher.
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.