Hello friends!I offer you models of jewelry. Files are checked for errors by Magics, and ready for prototyping - 3D printing or CNC milling. All of the parameters are shown in the pictures.Gem size 3.1 mm.Finger size diameters (mm): from 18.0 to 23.0 in increments of 0,5 mm.Weight in 14K gold is from:D18 - 13.81gD19 - 14.22gD20 - 14.72gD21 - 15.02g D22 - 15.44gD23 - 15.76gAll models are in one .3DM / .STL / .OBJ / FBX file.Note - all models are in one file. If you don't have spetial 3d soft and got a problem to separate one from massive - see my tutorial for it: https://www.cgtrader.com/tutorials/4799-how-to-separate-one-model-if-there-is-massive-in-one-fileYou can order cnc milling of this model in casting wax on the 5-axis cnc machine. Sending from Warsaw.Good shopping for you.