Presenting a beautifully elegant solitaire engagement ring featuring a sophisticated split twist shank design and a striking 5.50 mm Emerald Square cut center stone. This exquisite 3D model perfectly balances classic romance with modern aesthetics, highlighting the stunning geometry of the center diamond within a secure, open-profile four-prong setting. Meticulously crafted for high-end jewelry manufacturing, this design offers clean surfaces, smooth transitions, and excellent structural integrity specifically tailored for seamless casting and finishing.

1. TECHNICAL SECTIONS:

Technical Production InformationRing Size: US 6.5

Center Stone: 1 piece, Emerald Square Cut, 5.50 x 5.50 mm, approx. 0.86 carats

Shank Base Width: 1.80 mm

Shank Base Thickness: 1.70 mm

Upper Shank Width: 4.20 mm

Setting Height: 4.60 mm

Estimated Metal Weights:14K Gold: Approximately 3.43 grams

18K Gold: Approximately 4.11 grams

Platinum: Approximately 5.36 grams

925 Sterling Silver: Approximately 2.76 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.