The image above is of a large pendant with three layers, each made up from transparent glass fibres:
Besides the pendants, there are also floor and table versions, in various sizes -- the smaller ones having two layers, not three.
They really do look as good -- as gentle, as magical, as clean -- as this! Here is a black one:
and another table version, with the "Bowl Mirror" variant in the background:
Who wouldn't want one of these!
They are distributed in the UK and Scandinavia by Gateway Japan -- which is, by the way, a great source for other Japanese items of exceptional design quality, not just lights. Click here for their page showing the collection of round Mayuhana.