Hi again,
glad it arrived safely.
It definitely is not Murano. They did do some repros of this type of mother of pearl satin glass in the 1960s & 1970s, but your vase is an original Victorian piece, most likely English in origin. Murano did not produce air trap satin glass of this style in the Victorian era, & even their later 20th century repros of it, whilst being attractive, are not up to the high standard of Victorian era workmanship.
The gourd like shape is a style used by a number of Stourbridge makers in the later 19th century. It was typically used for satin & also cameo glass items.