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Details & Cataloguing

Magnificent Jewels and Noble Jewels, Session 3

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Geneva

'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.  
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Accompanied by GIA report no. 5182202198, stating that the diamond weighing 3.25 carats is D Colour, Internally Flawless, Excellent Polish; no. 2185202200, stating that the diamond weighing 3.74 carats is D Colour, Internally Flawless, Excellent Polish; no. 2185202070, stating that the diamond weighing 4.30 carats is D Colour, VVS1 Clarity, Excellent Polish, together with a working diagram stating that the diamond may be internally flawless after minor repolishing. 

Literature

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'. 

Catalogue Note

"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.

Magnificent Jewels and Noble Jewels, Session 3

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Geneva