Sterling Silver and Bumble Bee Jasper Pendant Necklace Art Nouveau Style Vintage

Beautiful sterling silver pendant necklace. Pendant appears to be natural Bumblebee Jasper stone. I am not a gemologist, but this is what I think this is. It's an oval stone with brown, orange, yellow, black throughout. The stone is set in 925 sterling silver in an Art Nouveau scroll style. The pendant measures drop of 1 1/4" width of 7/8". The stone measures 3/4 x 1/2". Weight is 3.93g. Pendant is on a 925 sterling silver 18" chain with a spring ring clasp. Condition is excellent. A beautiful piece.