Sorry to disappoint, but I'm fairly sure this isn't Lalique. It looks very similar to the Lalique
Versailles vase, but the molding doesn't seem to quite match (the edges of the foot for example look more rounded than on the genuine item), and it's a little too short (~12 inches tall vs. ~14 for the original).
At least one firm is known to have copied the
Versailles vase, a quick Google brings up the name
Godinger Athena Vase - I think this is what you have here.
Even though it's not Lalique, it's still an impressive piece and probably will still have some value - albeit closer to £70.00 than £7000.00
