Van Cleef and Arpels, A two row diamond bracelet, New York, c1939. Photo courtesy Wartski.

set with rows of baguette cut diamonds punctuated by pentagonal cut stones.

René Lalique. An Art Nouveau carved opal and engraved glass pendant, Paris, c1900. Photo courtesy Wartski.

mounted in gold, presented in its original gilded leather case. Height (pendant): 8.8cm

Wartski (stand 242). TEFAF Maastricht. 2014 14-23 march - http://www.tefaf.com/