A belle époque diamond necklace. Photo Christie's Image Ltd 2014

Of garland design, decorated at the front with ribbon motifs, foliate and floral swags, enhanced by circular-cut diamond collets, to the diamond collet neckline and ribbon clasp, 1910s, 39.0 cm . Estimate CHF18,000 – CHF28,000 ($20,509 - $31,903)

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