FacetLab reimagines the four Cs of diamond evaluation as interactive choices within a web browser, enabling users to explore how cut influences shape and polish, how color shifts perception, how clarity reveals or hides inclusions, and how carat size affects overall outcomes through visual comparisons. It is released as an open‑source learning tool with a live demo and accessible code on GitHub, designed for educational use rather than professional appraisal.
The project exists to transform a traditionally static topic into an engaging, playful learning loop. Because it runs directly in a browser using WebGL, there are no downloads required, making it accessible to learners, hobbyists, and educators alike, and it functions as an educational aid rather than a formal appraisal tool.
FacetLab is an open-source learning tool that invites users to try the simulator and inspect the code. A live tool is available, and the initiative is led by 4Cs.co.za / Diamond Education, with a GitHub repository that supports collaboration and contributions from the community.