Modern Diamond Engagement Ring 3D Model

I’m ready to have a modern-style engagement ring turned into a production-ready 3D file. The concept is clean and contemporary, built around a single centre diamond, with no vintage flourishes or extra stones.

What I need from you is the full CAD model—preferably in STL (OBJ or 3DM are fine too)—scaled to a standard US size 6 but easily editable so the jeweller can resize it later. The design must respect standard casting tolerances and include proper seatings and prongs for a round brilliant diamond of 6.5 mm diameter.

I’m comfortable if you work in Rhino, MatrixGold, ZBrush, or any other professional jewellery CAD package, as long as the exported mesh is watertight and print-ready. A quick render or two for visual confirmation would be appreciated as well.

Before signing off I’ll check:
• Accurate finger size and diamond seat measurements
• Smooth, non-manifold geometry ready for direct 3D printing
• File delivery in at least STL plus your native format

Let me know your estimated turnaround time and, if you have one, a small sample of past ring work so I can see your style matches mine.