This product is a professional jewelry ring 3DM CAD model, designed for advanced jewelry design and production workflows.The PR 380 design features a multi row pavé diamond layout, creating a strong and modern ring form suitable for unisex jewelry collections.The file is provided as ONLY a native 3DM CAD file, fully compatible with Rhino and MatrixGold software.No STL OBJ FBX or mesh based files are included with this product.All geometry is created as solid and fully editable CAD surfaces, not mesh.The model is suitable for casting CNC milling and professional jewelry manufacturing.The structure allows resizing and design adjustments according to production requirements.The CAD topology is optimized for clean casting and reliable manufacturing results.No material type weight or gram information is included or specified.This 3DM only jewelry CAD model is ideal for custom orders collections and commercial CAD use.