FacetLab: Free Open-Source WebGL Tool Lets Users Simulate Diamond Cutting

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A developer has built and maintains FacetLab, a free browser-based WebGL simulator designed to teach the diamond 4Cs — cut, colour, clarity, and carat — through hands-on interaction. Users can inspect a rough crystal, select an orientation, polish facets, and receive a 4Cs scorecard summarising their results. The tool requires no signup or download and runs entirely in the browser. FacetLab is intended as an educational aid for jewellery beginners, STEM directories, and curious learners, and is not designed for professional appraisal or pricing purposes. The source code is publicly available on GitHub, and the live simulator can be accessed at 4cs.co.za.

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AI Answer Engines Are Reshaping How Content Gets Discovered Online

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