Free CAD to Render Tool: Turn Jewelry CAD Screenshots into Photorealistic Images

Every custom jeweler knows the gap: the CAD model is finished, and the client needs to see what the piece will look like. A traditional render means setting up materials, lights and a camera in a renderer, or paying a render artist. HeyGema™'s render tool closes that gap, for free.

What the free render tool does

HeyGema™ turns your CAD into a photorealistic render in the browser. It's 100% free, forever, with no credit card. You sign in with Google or your email, upload your design, and choose the metal and stones.

How It Works

1. 1Add your design — Upload a screenshot of your model from any CAD program (Rhino, MatrixGold, JewelCAD, 3Design, CounterSketch and others), or a Rhino .3dm file
2. 2Choose the angle — A screenshot keeps the angle you captured. With a .3dm file, pick Front, Side, Top, ¾ or Back, or turn the model to any angle
3. 3Pick metal and stones — Yellow, white or rose gold; diamond, ruby, emerald, or blue, pink or purple sapphire for the center and side stones. Add notes such as milgrain or a brushed finish
4. 4Generate and download — Compare the render with your design and download it. Use Refine to try creative variations in plain words: each one is a new version and your original is kept

What You Get

• $0 — 100% free, forever. Pro is there if you render every day
• No render setup — No materials, lights or camera to set up
• Stays true to your design — The render keeps your angle, the size and position of the stones, and the metal as modeled
• Browser-based — Works on a computer or a phone, with nothing to install
• Client-ready — Made to show clients and get their approval

AI Rendering or Traditional Rendering?

• For catalog and advertising images where you control every reflection: a full renderer such as KeyShot, V-Ray or Blender, or a render artist
• For client consultations and approvals: HeyGema™ gives you a photorealistic image of your design with no setup
• For both: render client proposals with HeyGema™ and keep a full renderer for catalog shots

Try It

Open render.heygema.com, sign in with Google or your email, and upload a CAD screenshot or a .3dm file. For step-by-step walkthroughs, see the guides on rendering a Rhino .3dm file online and turning a CAD screenshot into a render at heygema.com/guides.