Clive Christian No.1 has been named the most expensive off the shelf perfume. A combination of Indian Jasmine, Bergamot, and Sandalwood. I do admit the combination of scents sound extremely lovely.
I think that the extravagant price tag (upwards of over $2000/ounce) is more due to the packaging. The perfume bottle has a lead crystal stopper, a 24kt plated neck over sterling silver, and set with a diamond solitare.
Personally? If I am going to buy precious gems and metals, it will be to adorn me and not my perfume bottle. I am vain that way.
Besides, I am more interested in how a perfume smells on me rather than how it looks in a bottle on my dresser.