Presenting a premium 3D CAD model of a Split Shank Solitaire Engagement Ring, seamlessly balancing classic elegance with modern geometric appeal. This sophisticated design features a gracefully sweeping split shank that perfectly frames a 1.16-carat cushion cut center stone in a secure four-prong setting. Meticulously crafted for high-end jewelry manufacturing, this model provides clean surfaces, smooth transitions, and excellent structural integrity tailored specifically for flawless casting.

Technical Production InformationRing Size: US 6.5Center Stone: 1 piece, Cushion cut, 6.75 x 5.25 mm, approx. 1.16 caratsShank Base Width: 1.80 mmShank Base Thickness: 1.70 mmUpper Shank Width: 4.20 mm (at widest split) / 1.70 mm (individual band)Setting Height: 4.45 mm

Estimated Metal Weights:14K Gold: Approximately 3.45 grams18K Gold: Approximately 4.13 gramsPlatinum: Approximately 5.39 grams925 Sterling Silver: Approximately 2.78 grams

File Format InformationThe download includes industry-standard formats to accommodate all professional workflows. You will receive the native CAD source format (3DM) for direct editing, the stereolithography format (STL) optimized for 3D printing, and universal mesh formats (OBJ, FBX) for seamless integration into studio rendering environments.

Manufacturing and ReadinessThis model has been rigorously verified through industry-standard mesh repair protocols. It is delivered as a fully watertight, non-manifold-free, closed solid body. The geometry is completely prepared for high-resolution resin 3D printing and subsequent investment casting. Tolerances, prong lengths, and thicknesses have been strategically calculated to allow for standard metal shrinkage, filing, and final high-polish finishing.

Professional Services AvailableIf you require this design adapted to alternative stone sizes, different ring dimensions, or wish to commission exclusive custom jewelry modeling services, please feel free to reach out. I am available for direct collaboration and bespoke CAD development to meet your specific manufacturing requirements.