Model created in SOLIDWORKS and checked. It is ready for printing. The STL file is attached. The model is a heart with a cross carved on the front with a depth of about 2 mm. Best print quality by SLS, SLM, SLA, DLP 3d printing methods.
Feel free to ask me any questions about the model you might have.
Total weight of Metal in pure gold is about - 42 grams
Total weight of Metal in pure silver is about - 24.3 grams