The model can be used for production, for casting and machining.STLModel is ready for prototyping on CNC and 3D Printing.Round stones:D2.0- 1D1.5- 1D1.0- 10ring size 7; 17,3Triangles All (3 parts) – 396640Vertices All – 1Metal Weight: Gold 14k – 3,83 gramsGold 18k – 4,46 grams