This is Swarovski article #4861, a 3/4 Disco Fire Ball Cabochon in the color Peridot Comet Argent Light.
Peridot is a light, spring green with a shiny, silver backing.
It has a flat surface that is foil-backed with Comet Argent Light, which is a little brighter than the common silver foil backing.
The surface has many, many facets, like a disco ball!
It measures 16mm and it does not have a hole.
This is a Vintage Swarovski Stone. discontinued in the 1970s.
These came to me in their original DS&Co packaging.
It would make a great "something old" for a wedding!
You will receive one stone.