Etihad Airways Etihad Guest - Duty free Champagne: In homecountry or in AUH?

When I fly to Jakarta next week, I'll buy a bottle of champagne in a duty free shop.
What do you think, should I buy it before my first flight or at the stopover in AUH? Is it in general possible to carry the champagne in this DF-bag, because of the liquid regulations?
My stopover is about 6hrs long and I'm going to be in a lounge.

Thanks in advance!

Typically much cheaper in European airports, so buy before arrival.

I found the prices in AUH DF much cheaper than most european airports DF.

I'm more afraid I must give the Champagne up to the airport staff in AUH when I come back from the Lounge to the Gate for my second flight (because of the liquid regulations). There is a security check. What do you think?

When I fly to Jakarta next week, I'll buy a bottle of champagne in a duty free shop.
What do you think, should I buy it before my first flight or at the stopover in AUH? Is it in general possible to carry the champagne in this DF-bag, because of the liquid regulations?
My stopover is about 6hrs long and I'm going to be in a lounge.

Thanks in advance!
they will not let you take it thru to next flight.
I did not find AUH champagne cheap at all!! now DXB( very cheap)
if there is a way of buying DF and putting in your luggage, Id do that.
what country are you flying from?? I find France cheap for many brands anyway.
get the prices in CGK and compare before dragging home.

Yes, I'm going to compare the prices in CGK to the prices in Europe!