Diptique Baies - dupe or oil diffuser alternative?

Hi there

I am based in Australia and love the smell of Diptique Baies. Someone once mentioned to me that Dusk had a dupe but I can’t seem to find the name or a candle that seems similar.

Does anyone have any suggestions for:

- candle dupes (I could get in Australia) or;

- oils I could put in my diffuser that would have a similar smell?

I also love having my house smell like a day spa so any recommendations would be appreciated!

Thanks in advance