Six 19th - 20th century stick pins

Six 19th - 20th century stick pins, including a diamond-set floral spray stick pin and a similar paste example; a stick pin with circular yellow gold plaque depicting the head of a young man with an old-cut diamond below his chin; a stick pin with gold ropetwist knot with a seed pearl to the centre; a stick pin mounted with an oval cameo of a moor looking left and wearing a turquoise earring within a ropetwist border, and a stick pin set with a trefoil of paste stones with cut-down silver collets