Vintage 925 necklace and 2 pair of earrings Black onyx red and orange gemstones

Vintage set 2 pair of earrings and 1 necklace All .925 silver Necklace is silver with black onyx stone with orange garnet gemstones and marcasite accents . This necklace has a unique closure and locking clasp on the pendant. 1 pair of vintage corkscrew earrings with small marcasite accents 1 pair of earrings with black onyx, red garnet gemstone hearts, and marcasite accents.* On 1 of these earrings, the black stone is chipped and shown in photos. The chipped piece has been long ago lost. please look at the photo's and video for details. this is a gorgeous 3 piece set from an estate.