Hi - welcome to the GMB

I hate to be picky on your first outing, but are we really sure the colouring on this one isn't simply opaque white glass - does this vase, for example, produce the opalescent (sunset glow) when held to a strong light - I can't see that effect in your picture ? I think the folk here also like to see a picture of the underside of glass - the type of pontil depression can be of help, sometimes.
You may well be correct with your description of art deco - an artistic style rather than indicating that something dates specifically to c. 1920 - 1940 - will leave others to comment on that.
Anyway an attractive and useful piece.