The pistil set with a step-cut tanzanite and the petals composed of carved chalcedony, highlighted throughout with brilliant-cut diamonds, detachable brooch fitting, signed Michele della Valle, numbered, maker's mark.

Signed michele della valle, numbered 11957, maker's mark for Michele della Valle, stamped 750 for 18 carat gold. Tanzanite measuring approximately 25.13 x 21.75, depth not measurable. Chalcedony in good condition. Diamonds estimated to weigh a total of approximately 7.00 - 8.00 carats, on average G- H colour, VS clarity, as gauged and graded in the mount. In very good condition. Gross weight approximately 113 grams.
"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.
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."