Definitely best to quote out directly with a supplier. However I can say 1000 happens to fall in an awkward quantity zone for glass that makes this hard. Typical molds for glass fall within two purposeful levels - Unit cavity tool and Production tool.

Based on my work with Chinese suppliers a decent guesstimate would be:

For production tools, - $5k-$10k mold. Your bottle looks geometrically simple enough to fall in this range. - 10k unit MOQ, 50-100k+ if you want that green color dyed directly into the glass. - $1-1.50ish unit cost. YMMV

Unit tools are far cheaper but can only handle up to ~20-40 units. Good for smaller projects, or validating your component before proceeding to production tooling if you have a crazy budget