Jewellery CAD & 3D design

I design rings. Then I model them for production.

I'm Justas — a designer with 10+ years in the craft, now focused on jewellery CAD. I model rings in Rhino and MatrixGold, render them in KeyShot, and export production-ready STL files for casting. 50+ ring models on file, from solitaires to eternity bands.

Explore a model in 3D ↓ Download portfolio (PDF)
Interactive

A production file, not a render.

This is the actual CAD file behind the eternity ring below — modeled in Rhino, metal frame and stones as separate solids, ready to export for casting. Drag to rotate, scroll or pinch to zoom.

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Eternity ring · ETR 8 1.11 ct diamonds · modeled in Rhino · exported as STL for casting
Selected work

50+ ring models on file.

A curated set of jewellery CAD work — solitaires, halos, eternity bands and a couple of pieces beyond rings. Modeled in Rhino & MatrixGold, rendered in KeyShot.

About

From industrial design to jewellery CAD.

BA in Industrial Design (Vilnius Academy of Arts), with 10+ years of hands-on design experience. Over the last few years that precision moved into jewellery: modeling rings for real production, not just for show — every piece on this page has a matching STL file ready for casting.

Comfortable across the full CAD pipeline: parametric modeling in Rhino, stone setting and casting prep in MatrixGold, photoreal rendering in KeyShot, plus Blender and Fusion 360 for broader product work. Also experimenting with LiDAR scan-to-mesh workflows — turning real-world scans into clean, editable geometry.

Tools
  • Rhino
  • MatrixGold
  • KeyShot
  • Blender
  • Fusion 360
  • STL / production export
  • LiDAR scan-to-mesh
Contact

Let's talk about a role.

@designer.justas@gmail.com #+370 678 51514 inlinkedin.com/in/justas-petrulis ↓Download portfolio (PDF)