Loose Gemstone Cut-Proportion Profiler & Total-Internal-Reflection Light-Return Simulator

Deterministic Silhouette facet-edge Hough goniometry (table %, crown α, pavilion β, girdle %) + 3D Fresnel/TIR Monte-Carlo ray-tracing brilliance score engine (.jpg, .heic, .dng, .pdf) built for GIA Cut Scale, Holloway Cut Advisor, Gemological, RapNet — zero-upload ephemeral Wasm RAM execution.