Antique ART DECO shop Czech Green Chrysoprase NECKLACE Marcasite Silver Metal

Stunning antique necklace from recent Columbus, Ohio estate sale.
Exceptionally well crafted.
Total length is 15" from clasp end to clasp end.
Center stone measures shop 1 1/2" across and 1" wide.
Silver tone metal does not have discoloration.
Unsigned.