Silver petite lace flower charm with olive green stone - excellent condition

I have a silver (not marked sterling silver but has never tarnished) lace open flower petite charm design with a dark olive green center stone. This would be a nice addition to a simple chain or bracelet. Super cute and dainty, about 1/4” in size. It was in my mother’s jewelry box for years so I assume it is vintage. No marking hence the price.