The 'green' wines (intended originally for either white wine or pale sherry) that were made commonly in the last quarter of the C19 were a much deeper green that this one, and they didn't include uranium - they are not too difficult to date - if there's a collar (under the bowl) then the suggestion is c. 1860 - 80 - and if lacking the collar then probably later.......... this is according to the thoughts of Chairman Mark West, and I wouldn't question his authority.
Reidel is credited with the modern take on adding uranium to the batch - c. 1830 apparently - which would put it a little later than Regency - I've not yet heard of any Regency (technically 1811 - 1820) glass glowing. Seems the Romans used it a bit earlier.
I forget now, and don't have his books, but Barry Skelcher probably mentions somewhere when u. glass might have been used in green glasses like the one here.
This glass (or set) might possibly have been made for white wine or sherry - difficult to tell now - going back a few years green glasses of some shade, and the dark green ones - could be found at boot fairs commonly in various shades of green - the variation in colour, decorative embellishment, size etc. is massive. IMHO I'd be inclined to go with last quarter of C19 for this piece, that's assuming it has a decent amount of wear, then again that's an unreliable feature - it might be somewhere in the first quarter of the C20.
Are you happy the glow here is u. and not something else? As a general off the cuff comment, I tend to think of sheared glasses as being inferior to those that have been attached to the pontil rod - snapped - and then had the scar ground/polished to create a depression.