Hi there:
Just got this and I am pretty sure ( 99% ) this is a Fratelli Toso Vase -- BUT since it is unmarked, I will post it here and then later it can be moved to Murano Glass.
The bottom has very good wear and a polished pontil. Stripes with Aventurine ( or "copper inclusions ) in it. Very soft colors. Kinda hard to get a good picture. It has a tint of blue in the bottom, then goes to white, then to a soft, soft pink at the very top of the vase. All the while, it has mottled stripes of white and Aventurine in it.

Size is:
~ 10 inches tall
~ 4.25 inches wide
~ 8.25 inches long
No label on it --- but Positive this is Fratelli Toso. WHAT are your opinions on this.
** Something to compare with
RIGHT HERE, CLICK ~ Thanks for looking - Any additional info welcome!!