You can get the blueprint from the drawing at the bottom of this page and export it to you're ultimaker program. (Cura)
Because the vase is so small the ultimaker does not have to use support material so be sure that in Cura the support material is on 'None'.
The Layer height is 0.15mm and wall thickness 0.8mm.
This is something i didn't manage the first time so i had to start over a couple of times.
Now you can make a necklace by adding a chain or a piece of string an some dried flowers or plastic flowers in the vase.