I have a series of classic engagement rings sketched out and now need them transformed into production-ready CAD files. The look I want is timeless rather than ornate or ultra-modern, so every curve and proportion must feel elegant, balanced, and easy for a bench jeweller to cast and finish. Here is the scope: • Translate my 2D sketches and stone specifications into accurate 3D CAD models suitable for lost-wax casting (Rhino, Matrix, or comparable jewellery software are all fine, as long as the final files open cleanly in Rhino and arrive with clean, closed meshes). • Provide both editable source files and high-resolution STL exports. • Include two photorealistic renders per ring so I can show clients quick visuals before we move to prototyping. Acceptance criteria 1. Shank, setting and prong thicknesses comply with standard manufacturing tolerances (no walls under 0.6 mm). 2. Centre stone seats precisely to the millimetre I specify; melee seats lined up evenly. 3. All files pass a printability check in Materialise Magics or a comparable analyser without further fixing. If this sounds like your niche and you have a portfolio of classic engagement rings to prove it, let’s discuss timelines and, if needed, a test model to make sure we align on style and technical expectations.