Art Nouveau Style Bracelet and Earrings Set

Chrysoprase Green Color Stones

Stones have inclusions, shown brighter color in bright light)

Fancy scroll filigree, Book Link bracelet

Clip Earrings 

Unsigned, no hallmarks

Last photo shows similar piece (stones) from a Costume Jewelry book.

Also unsigned. Have found no others similar in research.

Stones are cool (not cold) to the touch

Viewed through a loop there are striations, cracks and small bubbles

Could be marbled glass (?).  

Silver tone metal is shiny white under well worn plating on back.

C18