Free Production-Ready 6-Prong Solitaire Ring Base – Technical Specification & Editable Assets

A clean, timeless 6-prong solitaire engagement ring designed for jewelry CAD workflows, 3D printing, and direct investment casting. Optimized specifically for a 4.0 mm round brilliant centerpiece with realistic manufacturing tolerances and ergonomic proportions.

This pack includes a complete 3D printable STL size series (US 4 to US 8) and editable source files (.blend and .fbx) in US Size 6.

All major structural components—ring shank, prong basket, individual prongs, and gemstone—are separated as distinct objects in the source file, allowing effortless adjustments to prong height, tolerances, or custom stone swaps.

Technical Specifications & Manufacturing Parameters: Main Stone: 4.0 mm Round Brilliant Cut Diamond / Gemstone (~0.25 ct equivalent) Shank Width: 2.0 mm (Durable, comfortable daily-wear profile) Shank Thickness: 1.4 mm (Optimized for structural integrity and secure casting) Setting Type: Classic 6-Prong Crown / Basket with pre-cut seats Topology: 100% Manifold, watertight STL geometry (zero-length edges, no non-manifold elements) 3D Printing / Casting: Optimized for SLA/DLP resin printing and direct investment wax casting

Estimated Metal Weights (US Size 6 Reference): 14K Gold: ~2.94 g 925 Sterling Silver: ~2.34 g