3Design is a parametric computer-aided design (CAD) software suite developed by the French company 3Design SAS, built specifically for the jewellery and watchmaking industries. Unlike general-purpose CAD platforms adapted for jewellery use, 3Design was conceived from the outset around the particular demands of the bench jeweller and production manufacturer: component-based modelling, integrated gemstone libraries, photorealistic rendering, and direct output to CNC milling machines and 3D printers. The platform has achieved widespread adoption across European and Asian jewellery manufacturing, and is considered one of the principal specialist CAD environments alongside Matrix (Gemvision) and RhinoGold.

Parametric Modelling and the Component Approach

The defining technical characteristic of 3Design is its parametric engine. In parametric CAD, dimensional relationships between elements are stored as editable constraints rather than as fixed geometry. A designer who adjusts the finger size of a ring shank, for example, will find that the attached gallery, prong arrangement, and overall proportions update automatically and consistently — without the need to rebuild the model from scratch. This non-destructive workflow is of considerable practical value in bespoke jewellery, where a single design may be produced across a range of sizes and metal weights, and in production environments where iterative client approval is routine.

The software organises design work around a library of pre-built, fully parametric components: shanks, galleries, collets, claw and bezel settings, pavé arrangements, channel settings, and a wide catalogue of standardised gemstone cuts represented as accurate geometric solids. Designers assemble these components and adjust their parameters — claw count, girdle diameter, metal thickness, stone spacing — rather than modelling each element from first principles. This approach lowers the barrier to entry for jewellers who are skilled craftspeople rather than trained CAD engineers, and substantially accelerates production timelines for standard typologies such as solitaire rings, eternity bands, and cluster pendants.

Gemstone Libraries and Setting Accuracy

Accurate gemstone representation is a prerequisite for jewellery CAD that general engineering software rarely satisfies out of the box. 3Design includes an extensive library of gemstone solids conforming to standard cut proportions — round brilliants, princess cuts, ovals, pears, marquises, cushions, and calibrated fancy shapes — each modelled to the proportions used by the cutting industry. Stones can be placed individually or arrayed in pavé, channel, or invisible-setting configurations, with the software calculating seat depths and girdle-bearing surfaces automatically.

The practical consequence is that a model exported for casting or milling will carry correctly proportioned stone seats, reducing the hand-finishing required at the bench and minimising the risk of stones sitting proud of or below their intended level. For production houses working with calibrated commercial goods, this integration between the virtual stone library and the physical cutting standard is a significant efficiency gain.

Rendering and Client Presentation

3Design incorporates a photorealistic rendering engine that allows designers to present proposals to clients before any physical model is produced. Metal finishes — yellow, white, and rose gold; platinum; silver — can be simulated with appropriate reflectance and surface texture, and gemstones are rendered with refraction and dispersion approximations that give a reasonable impression of the finished piece. While no software render fully replicates the optical behaviour of a faceted stone in hand, the quality achievable in 3Design is sufficient for client approval workflows and for marketing imagery in the mid-to-upper market.

The platform also generates technical drawings — dimensioned orthographic views — that serve as production documents for bench jewellers and quality-control references for manufacturers. This integration of presentation and production documentation within a single environment reduces the translation errors that can arise when rendering and technical drawing are handled by separate software.

Manufacturing Output: CNC and Additive Manufacturing

The final stage of a 3Design workflow is export to physical production. The software supports direct output to the file formats required by CNC milling machines (which cut wax or metal directly) and to the STL and related formats used by 3D printers producing castable resin or wax patterns. Both routes feed into the lost-wax casting process that remains the dominant production method for fine jewellery, though direct metal printing and CNC-milled metal are increasingly used for prototyping and for certain production applications.

The parametric foundation of 3Design means that a single master model can be exported at multiple sizes or with minor design variations without manual remodelling, supporting both bespoke single-piece production and short-run manufacturing from a common digital asset.

Position in the Jewellery CAD Landscape

The jewellery CAD market is served by a small number of specialist platforms. Matrix, developed by Gemvision in the United States and built on the Rhinoceros 3D engine, has historically dominated the North American market. RhinoGold (now TDM Solutions' RhinoJewel) occupies a similar position in parts of Europe and Latin America. 3Design is particularly prevalent in France, Italy, and across manufacturing centres in Asia — notably in the jewellery production hubs of Thailand and Hong Kong — reflecting both the software's French origins and its strong distribution network in those regions.

Each platform carries different strengths: Matrix users benefit from the broad ecosystem of Rhinoceros plug-ins and the familiarity of that environment; 3Design users cite the depth and quality of its native component libraries and the accessibility of its parametric approach for jewellers without a background in engineering CAD. The choice between platforms is often made on the basis of regional training availability, existing workshop infrastructure, and the specific typologies a manufacturer produces most frequently.

Training and Professional Adoption

3Design is taught at a number of European jewellery schools and technical colleges, and the company maintains a network of certified training centres. Proficiency in the software has become a recognised professional credential in European jewellery manufacturing, appearing as a specified requirement in workshop and design-house recruitment. The software is offered in tiered versions — including entry-level and full professional editions — allowing smaller studios to adopt the platform without the capital outlay of a full manufacturing licence.

The broader shift toward CAD-driven production in fine jewellery, accelerated by the falling cost of desktop 3D printing and the increasing client expectation of rendered previews before commission, has made fluency in at least one jewellery CAD platform effectively a baseline competency for professional jewellery designers entering the industry in the 2010s and 2020s. 3Design represents one of the principal routes through which that competency is acquired and practised.