Ruby and diamond brooch

Of stylised trefoil design, set with circular-cut diamonds and similarly cut rubies, mounted in white gold.

The correct estimate is CHF 7,000-12,000 / US$ 6,000-10,000. Stamped 750 for gold. The three diamonds have been gauged to weigh approximately between 1.00 and 1.50 carats. In our experts' opinion the larger diamond is L-M colour, SI clarity, the two smaller ones J-L colour, SI clarity as graded in the mount. Rubies a pinkish red hue with good saturation of colour and well matched. Typical crystal inclusions and minor abrasions. Metal with signs of little wear, scratches commensurate with normal wear, in 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. Please note that colour, clarity and weight of gemstones are statements of opinion only and not statements of fact by Sotheby's. We do not guarantee, and are not responsible for any certificate from a gemological laboratory that may accompany the property. We do not guarantee that watches are in working order. 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. Prospective buyers should also refer to refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue, in particular to the Notice regarding the treatment and condition of gemstones and to the Notice regarding import of Burmese jadeite and rubies into the US.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."