This is a beautiful lamp, just stunning. I am so happy with this, even unlit, this lights up a room! It is quite heavy so it won't get knocked over and is so attractive tree styling.
These are glass but keep this in mind: (copied from a blog question on google):
Have you ever tapped on a Tiffany-style lamp and wondered why it sounds like plastic? Louis Comfort Tiffany developed a process of snugly wrapping each piece of stained glass in a thin piece of paper that is covered in copper foil. “Because of this tight wrapping of the glass, there is no room for the glass to resonate and have the glass sound and feel like you expect to get when tapping on the surface,” says Ronda Young of Youngworks. “Normally, glass like in windows and in glassware is free to resonate with vibrations caused from tapping on it, but in the case of the stained glass copper foil technique, this is lost and a dull thump is often all we hear.”
If you gently tap the shade with a fork, you can feel the glass tone better."