A sapphire and diamond brooch-pendant, by Harry Winston. Photo Christie's Image Ltd 2013

The rectangular-cut sapphire, weighing approximately 9.67 carats, within a cluster of pear and marquise-shaped diamonds, mounted in platinum, 4.2 cm. With maker’s mark of Jacques Timey for Harry Winston. Estimate:  $333,448 – $466,827

Accompanied by a gemmological report, please refer to the department for further details 

Christie's. MAGNIFICENT JEWELS. 12 November 2013. Geneva - www.christie's.com