I wish I could help you, but I've never seen that bottle before. The cap looks newish and drug store'ish, so I would say it's not vintage, also the color seems a bit light. I don't know, Magoylyn, it's always a gamble on ebay. Perhaps someone else will weigh in as well.
I bought a full .25 oz. bottle of vintage Émeraude parfum at a thrift store last week-- the bottle looks the same as the one in your listing (and the color of the perfume is exactly the same) except the color of the cap is emerald green, like this one: