An early 19th century green paste necklace

An early 19th century green paste necklace, cruciform pendant and earrings, the necklace formed with graduated cushion-shaped pastes mounted in gold open-backed collets and joined with turquoise coloured paste cabochon-mounted gold flowerhead links, some damaged, suspending a gold pendant set with six green pastes and a pair of conforming paste-set earrings (one detached from upper section), the gold clasp with unidentified control marks, necklace 39cm, fitted case