This elegant engagement ring features a stunning 7.50 mm round brilliant center stone, perfectly complemented by a delicate hidden halo and a meticulously set pave diamond band. Balancing classic romance with modern sophistication, the design ensures the center stone takes center stage while offering brilliant intricate details from every viewing angle. The model is meticulously crafted for high-end jewelry manufacturing, offering clean surfaces, smooth transitions, and excellent structural integrity tailored for casting.

Technical Production InformationRing Size: US 6.5Center Stone: 1 piece, Round Brilliant cut, 7.50 x 7.50 mm, approx. 1.57 caratsSide Stones (Hidden Halo): 18 pieces, Round Brilliant, 1.30 mm, approx. 0.15 ctwSide Stones (Shank): 16 pieces, Round Brilliant, 0.90 mm, approx. 0.04 ctwShank Base Width: 1.60 mmShank Base Thickness: 1.50 mmUpper Shank Width: 1.60 mmSetting Height: 6.50 mm

Estimated Metal Weights:14K Gold: Approximately 2.24 grams18K Gold: Approximately 2.68 gramsPlatinum: Approximately 3.50 grams925 Sterling Silver: Approximately 1.80 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.