Not a big blue bow pin, but a big blue sew-on, probably intended for a hat. There are 3 small rings or eyes on the back to run your thread through. Faceted rhinestones are still very nice though I think the settings could fit a little tighter. Then again, I am sure it wasn't purchased at Tiffany's - it is what it is and in very good condition. Measures 3 inches across and 2 down.
