For the blue stone (it's actually a piece of glass
) I used a 0.5 mm diameter garden wire: I know it will eventually oxidize, but it was just an experiment!
For the green stone I used a 1.5 mm zinc coated wire. Don't really know how it is going to behave in time
I'm looking for silver wire but I only have some veeery thin silver wires, while I'd like to use a thicker one (1.5 mm would be perfect). Can't find it
Thanks again for the comments!