Professional 3D model of a domed gold band ring with a perforated openwork surface, ready for jewelry 3D printing and lost-wax casting. Ring size: 19.50 mm inner diameter. Modelled in 18k yellow gold proportions. Estimated metal weight: 2.95 g in 18k gold. Overall dimensions: 23.79 x 6.50 x 23.69 mm. The mesh is watertight, manifold and a single closed solid, verified for 3D printing. Units in millimeters at real-world scale, centered and oriented for direct slicing. The package includes the STL and native 3DM (Rhino) files, plus a 360 degree turntable video and a technical sheet with full dimensions. Ideal for jewellers, CAD designers and 3D-print studios.