Presenting a sophisticated engagement ring design featuring a stunning 6.5mm princess-cut center stone elegantly supported by a refined four-prong setting with a delicate hidden halo of round brilliant accents. This piece perfectly balances classic elegance with modern aesthetics, making it a timeless choice for bridal jewelry. The model is meticulously crafted for high-end jewelry manufacturing, offering flawlessly clean surfaces, smooth transitions, and excellent structural integrity tailored specifically for investment casting.

Technical Production InformationRing Size: US 6.5

Center Stone: 1 piece, Princess cut, 6.50 x 6.50 mm (approx. 1.72 carats)

Side Stones: 16 pieces, Round Brilliant, 0.90 x 0.90 mm (approx. 0.044 ctw)

Shank Base Width: 1.60 mm

Shank Base Thickness: 1.50 mm

Upper Shank Width: 1.70 mm

Setting Height: 6.75 mm

Estimated Metal Weights:14K Gold: Approximately 2.43 grams

18K Gold: Approximately 2.90 grams

Platinum: Approximately 3.79 grams

925 Sterling Silver: Approximately 1.95 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.