A Belle Epoque sapphire and diamond tiara. Photo Christie's Image Ltd 2014

The base designed as an openwork wreath of diamond-set laurel leaves, centering upon a circular-cut diamond collet, surmounted by a series of graduated cushion-shaped sapphires in diamond-set clusters, a diamond-set wavy line and alternated diamond and sapphire collets on top, 1910s. Estimate CHF200,000 – CHF300,000 ($229,479 - $344,219)

Christie's. GENEVA MAGNIFICENT JEWELS. 14 May 2014, Geneva - http://www.christies.com/