'The Star of Sierra Leone Diamond Brooch', Harry Winston

Of floral motif, set with a pear-shaped diamond, surrounded with a similarly shaped stone weighing 3.25 carats, and five marquise-shaped diamonds weighing 2.86, 2.97, 3.74, 3.93 and 4.30 carats, further highlighted with marquise-shaped stones, unsigned, maker's mark for Jacques Timey.  

Cf.: Laurence S. Krashes, Harry Winston, The Ultimate Jeweler, New York, 1993, pg. 11 for an illustration of this brooch, and pg. 118 for the article on the 'Star of Sierra Leone'. 

Accompanied by GIA report no. 5182202198, stating that the pear-shaped diamond weighing 3.25 carats, measuring 15.93 x 8.66 x 3.78mm, is D Colour, Internally Flawless, Excellent Polish; no. 2185202200, stating that the marquise-shaped diamond weighing 3.74 carats, measuring 19.16 x 8.03 x 4.03mm, is D Colour, Internally Flawless, Excellent Polish; no. 2185202070, stating that the marquise-shaped diamond weighing 4.30 carats, measuring 19.78 x 8.95 x 3.88mm, is D Colour, VVS1 Clarity, Excellent Polish, together with a working diagram stating that the diamond may be internally flawless after minor repolishing. Maker's mark for Jacques Timey. Stamped 950 Pt for platinum and OR for gold. For more information on the diamonds, please refer to the GIA reports. Minor signs of wear to the metal. Clasp secure, rotating safety catch and additional safety chain. In excellent condition. Gross weight approximately 24 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."

"Harry Winston purchased the Star of Sierra Leone in 1972... Originally, the largest stone was a 143.20 carat emerald cut, of fine colour but flawed. Mr. Winston felt that such a large stone should be flawless... The top was sawed horizontally to remove the imperfections. The bottom piece was refashioned to a D-flawless emerald-cut of 35.52 carats. From the top piece that had been removed, six diamonds were fashioned; five of them were D-flawless. These six stones - weighing a total of 21 carats - were used in the Star of Sierra Leone brooch, arranged like the petals of a flower".

Excerpt from Laurence S. Krashes, The Ultimate Jeweler.