Czech Black Crystal Square Clip On Earrings 3/$25

not sure how old these are, but they were obtained in a lot of vintage jewelry pieces that I recently bought. my assumption is they're vintage as well. I found very little info aside from what I'm including in this post when I researched them online. they could be a HUGE score for someone out there, if so, my loss your gain..... I'm happy for you. regardless they're exquisite and the pics just can't do them justice. the sparkle coming off of the facets in the black stones is remarkable. when Lauren Hill poetically sang about "black diamonds and pearls" i imagined they'd shine just like this.