A most incredible piece of history!
Czech huge dress clip, you can also pull it through a chain or attach to another necklace for a spectacular show of color.
The piece has assorted round rhinestones in various colors.
I wear it attached to a winter hat, or pin it to my lapel on a black jacket, this is wow factor.
Of course most of Czech is spectacular including this.
3 3/4 inches. c. early 1900s condition is excellent.