bowl attached - not sure what happened to my previous post.
It's id'd in Gulliver Victorian Decorative Glass 1850-1914 page 174 - there are three the same in different colours, amber, ruby and turquoise. The turquoise is not like the blue on the splotches on Greg's vase.
Legsy your feet are more ribbed than mine but whilst your exact vase isn't in the book that I could see, there is a Stuart vase with the rigaree and prunts like mine in ruby with feet that are many more ribs than my shell feet - page 173 middle item.
Does your vase have some extra glass trails hanging down from the prunts by the way, apart from the rigaree going around the vase? Ah, I can see them now. There is another vase in Gulliver on the same page, unidentified that has some trails with a clear glass round 'button' at the top of the ribbon trails which hang down.
Also a similar shape to that one bottom of page but different coloured glass and has the ribbon trail with buttons and that's unidentified as well.
So on that basis, I apologise as I'm not entirely sure yours is Stuart as Gulliver has them as unidentified.