A Belle Époque diamond brooch. Estimate CHF38,000 – CHF50,000 ($38,324 - $50,426). Photo Christie's Image Ltd 2015

Designed as an openwork bow with foliate motifs, suspending an asymmetrical detachable ribbon pendant, set throughout with old-cut diamonds, to the collet-set diamond fringe terminals, 1910s, 13.1 cm 

Christie's. GENEVA MAGNIFICENT JEWELS, 10 November 2015, Geneva