I think this is the same type of bead, without the middle part of yours and just 3.5 inch long. Mine is eight-sided. The effects with light are the same as on the "moon-beads", white blueish, like ice, with light from above and with a touch of orange if backlighted.
And yes, I think its Bohemian, but I too donīt know, how to call it.
By the way: I still miss Stevens/Claudian beautiful moon bead images...