This piece was successfully printed and produced in metal.
Set contains STL model ready for printing and Rhino3d 3DM source file.
Model volume (for single complete earring with lock) is 171mm^3
Gems (for single earring): 4x1.6mm diamond cut, 4x1.3mm diamond cut and 1x5mm diamond cut central stone.
I added OBJ files in two versions (mesh and NURBS) just for fun. That OBJ are useless for production but it was needed because CGtrader have very stupid recomendations and placement mechanisms. It's also the reason why I place this text here.
Anyway this model was succesfully printed and produced in metal (18ct white gold if this information plays any role) with diamonds and central cytrine..