I inherited this vase from my aunt. My first guess would be that it is from Val Saint Lambert, buy I didn't find any similar objects yet.
No markings.
heigth: 23 cm
width at top: 18 cm
weigth: +5 kg
thickness of glass: 17mm
It was very difficult to make some acceptable photographs, because of the internal reflections inside the glass.
Hope you can help me with confirming the ID and perhaps giving some indication of year of production.
Many thanks
BrunoD