CiM Trapeze is a wonderfully transparent medium lavender - that I get the feeling is supposed to colour shift. It has that colour about it that looks like others that shift, and I see a little tonal variation, but not huge, dramatic shifts. This may say more about my lighting options and the lack of sunlight than about the glass, however.
Like others of it's ilk - other purple-blue "Alexandrite" colour shift glasses - it is dreamy to work. Very clear, tiny bubbles, but no scumming. I wish "clear" was this nice.
Anyhoo - it's a nice, magical colour.