She's a beauty! It is signed Made in Italy on the bottom. I'm almost positive this is Empoli glass. Two things -- 1/I urge you to enlarge your pics. On the stopper there seems to be a chip. I didn't notice it when looking at it but I can feel it.

Brand: Genie
Origin: Empoli
Pattern: Diamond
Type: Bottle
Color: Green
Material: Glass
Production Style: Art Glass
Country/Region of Manufacture: Italy