BULLET Pendant 3D print model

Here's the thing. Its wonderful in its design zero flaws but the designer left out how many stones are needed and how big in mm they are. As well as how the file is setup. For instance the design was unfinished as I have purchased others that printed just fine but with the way the file is laying with no supports you have to stand the pendant upright and add your own supports . Overall I'm gonna have to say a negative experience its almost like the designer quit because its impossible to reach them via message. Its a shame because the design is so nice need more details....