Celebrating the beauty in glass bead necklaces

I really love glass beads. I find them so beautiful and they come in so meny variations. Not expensive, quite modest but silently elegant or colorful and a liter louder. Long, short, artistic or strict. There is something for everyone. These I have posted separately a long time ago but now I will share them like this to celebrate glass bead necklaces.
In the photo where the necklaces are shown in full lenght: The left one I haven't been able to find out its origin. The middle one is German I think with frosted glass. The right one is an italian somerso bead necklace.
I know a lot of people on CW loves glass not only us jewelry collectors. It is a great material. Maybe someone will know more about the glass in these?