Well, I am pretty sure your candlestick/vase is from Kastehelmi range by Oiva Toikka, produced by Nuutajärvi/Arabia (but please don't ask me which label was used first or when they were exactly used).
Kastehelmi range seems to be rather large and to my opinion quite unmistakable. I have never seem or heard about any imitations either.
Regards,
TMaritta