Which version of No. 19 do you like A*O? Parfum, EdP or EdT? Chanel is one of a few perfume houses whose different forms in a perfume differed not only in the concentration of perfume oil, but also in their composition. Nothing major, just extra emphasis of certain ingredients in one form compared to another, but it does results in variation in the smell. Guerlain is another perfume house whose EDT and EDP often smell really different.
Based on your love for No.19in general, I would suggest "Y" by YSL. This is also a green fragrance. I saw it a few week ago at Terry White Chemist for $65. Not bad. I'll think of a few other in a similar vein.