I believe that prop was created from a 'long neck flat bottom flask' made for scientific use. The neck decoration can be achieved with a simple glass engraver such as the small Proxxon tool.
You can find all different sizes and neck lengths to get the perfect screen match as well. They can get expensive for higher quality versions, but for recreating this prop you can go cheap and get them under $20 for sure.
The rest of the ornate gold bits could be 3D printed like you said. These could probably be batched out pretty easily since those flasks are often sold in multi packs. Really cool prop!
This one doesn't quite have the same neck length, but I chose this picture for obvious reasons:
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