This premium 3D CAD model features an elegant solitaire engagement ring distinguished by a graceful, interlocking twisting split-shank design. The fluid, intersecting lines of the band seamless wrap around to support a classic four-prongs setting, securely holding a prominent oval-cut center stone. This design masterfully combines contemporary fluid movement with timeless bridal elegance, making it an exceptional addition to any digital storefront or a flawless foundation for physical manufacturing.The model has been meticulously engineered from the ground up for high-end jewelry production, commercial rendering, and rapid prototyping. With clean topology, precise tolerances, and uniform wall thickness, it ensures a seamless workflow from digital asset to finished casting.Technical SpecificationsCenter Stone: 1 Oval Cut GemstoneCenter Stone Dimensions: $7.75 \text{ mm} \times 5.75 \text{ mm}$Diamond Carat Weight Equivalent: Approximately 0.97 ctRing Size: 6.5 (US)Shank Width: 2.00 mm at the baseShank Thickness: 1.60 mm at the base, tapering elegantly to 1.70 mm along the split crossoverSetting Height: 4.40 mm from the top of the shank to the prong tipsEstimated Metal WeightsThe model is highly optimized for casting, providing excellent material distribution. Estimated weights across standard production alloys include:Gold 14K Yellow: 2.84 grams (1.83 DWT)Gold 18K Yellow: 3.40 grams (2.19 DWT)Gold 14K White (KW): 2.78 grams (1.79 DWT)Gold 18K White (KW): 3.24 grams (2.08 DWT)Gold 14K Rose: 2.88 grams (1.85 DWT)Platinum (PLAT): 4.44 grams (2.85 DWT)Sterling Silver .925: 2.29 grams (1.47 DWT)Production & Workflow ReadinessManufacturing Optimized: Fully prepared for 3D printing (SLA, DLP, MJP) and direct investment casting.Software Compatibility: Native geometry built with flawless precision, fully compatible with Rhinoceros, MatrixGold, Gemvision Matrix, and Materialise Magics workflows.Clean Geometry: Standard professional orientation with an open, accessible collet structure beneath the head to allow for easy stone setting, optimal light performance, and straightforward post-cast polishing.Available File FormatsThe download package includes industry-standard formats to ensure versatile compatibility across various CAD, rendering, and manufacturing applications:3DM (Native Rhinoceros geometry, preserving layer organization and editability)STL (High-density, error-free mesh print-ready for rapid prototyping)OBJ (Optimized for seamless import into preferred rendering engines and DCC software)FBX (Ideal for high-fidelity digital visualization, e-commerce applications, and interactive lookbooks)Professional Customization & CollaborationAs an active jewelry CAD designer, I ensure all my models meet strict bench-jeweler standards for real-world production. If you require this design in a different ring size, modified gemstone dimensions, alternative prong configurations, or if you are interested in bespoke custom jewelry design collaborations, please feel free to reach out via the message board.