Lot 52. An 18k gold and diamond necklace, Van Cleef & Arpels. Estimate $10,000 - 15,000Sold for US$ 12,500 (€10,410). Photo: Bonhams. 

designed with an expandable padlock, accented with round brilliant-cut diamonds; signed Van Cleef & Arpels, VCA, no.BL17525, with maker's mark and French assay marks; accompanied by a signed box; gross weight approximately: 91.30 grams; length: 38 7/16in.

Bonhams. FINE JEWELLERY, 19 Sep 2017, 13:00 EDT, NEW YORK