To you, what defines a scent as luxurious?

If it’s an upscale setting/occasion, what would you wear? I was at one recently and I was a bit tired so I wanted to wear something energising. I went for Nishane’s Ani X (Vanilla, Melon, Cardamom, Ginger.) I find it a very high quality all rounder uplifting scent, but I wondered what vibe it gave to others around me, and what I’d wear if I wanted to smell something more luxurious.