A late 19th century French blue hardstone and diamond set composite suite, comprising a circular brooch suspending three tiered drops, two converted pendant drops, formerly ear pendants and with accompanying modern detachable chain, together with two circular dress studs, rose-cut diamond set throughout, gold and silver mounted with French eagle head guarantee marks, (blue hardstone untested), cased by Hippolyte Martel / 4 Place de L’opéra / Paris, brooch length 7.15cm. £1,400-£1,600