An opal, onyx, seed pearl, and diamond pendant necklace. The calibré-cut onyx and old brilliant, princess, single and rose-cut diamond stylised bow surmount, terminating in a 14.0mm. opal bead, caped by similarly-cut stones, suspended from a fine trace-link chain spectacle-set with seed pearls, diamonds approx. 0.60ct. total, lengths: pendant 6.5cm, chain 43.0cm. Art Deco or Art Deco style, might be older.