An emerald pendant and chain, circular floral pendant set with a round faceted emerald, approximate

An emerald pendant and chain, circular floral pendant set with a round faceted emerald, approximate diameter 4.3mm, surrounded by filigree decoration and a rope twist border, tapered bale, length including able, 3.5cm, width 2.6cm, unhallmarked, stamped with a Portuguese mark for 800gold fineness, weight 5g, suspended from a rope chain, length 41cm, width 3.5mm, unmarked, tested as 18ct gold, gross weight 14.5g