Hello,
I looked at this when it first appeared and felt that I could not add anything.
However, I was left wondering, and having looked again. I now realise that this doesn't really conform with what I would think of as Arts & Crafts. The glass is too heavy and has angularity that is not associated with that genre, especially where it splays out of the metalware toward the base. I would associate it more with Art Deco, even though there are nods toward the Arts & Crafts era with the style of metal holder.
Nigel