This dainty black onyx tablet is set in a sawtooth-edge bezel with a frame of spiral ribbons containing embossed chain links--quite a lot of detail in this beauty!
The pendant is 1" and with the ribbed bail height is 1 1/4". Width is 3/4". The back of the setting is stamped "G 1/20-12K G.F."
The curb link chain is 18" long and has a spring-ring clasp stamped with a very similar mark.
Condition is excellent.
Vintage Black Onyx Oval Pendant in Gold-Filled Spiral Bezel Setting, 18" G. F. Necklace