Vintage YSL (Yves Saint Laurent) Clip-On Faux Pearl 5 Crystal Rhinestones Goldtone. Signed on the clip YSL. Goldtone finish is bright and shiny with very little vintage aging.
These are a collector's item. One earrings faux pearl has a very small and light smudge of red.
A professional jewelry cleaner should remove it.
They measure 1 1/4" in diameter. See the photo's here - http://prettyjewelrythings.ecrater.com/product.php?pid=4142293.