Facet is a product page that tells its story through one object. A faceted gem, built from nothing but procedural geometry, hangs in a single sticky canvas while four chapters of text scroll over it. As the visitor scrolls, a damped timeline moves the camera along a smooth spline, turns the gem, and changes its finish from clear to amber to rose to jade while the page tone and the thin rings behind it shift to match. The glass is a physically based material with transmission, high-index dispersion, a touch of iridescence and clearcoat, lit by a contrasty studio the page bakes itself from a tiny scene of dark gradients, bright blades and softboxes, so there are no HDR files to download. Behind it a lit sweep falls into darker corners, a tinted glow rims the silhouette and a soft contact shadow grounds it, while the glass panels carry a hairline gradient edge, an italic accent word and a progress rail. Scrolling stays completely native, panels keep text above AA contrast, phones get a lower pixel ratio and simpler geometry, reduced motion snaps the gem to each chapter instead of sweeping, and without WebGL a flat SVG gem takes its place. It suits a launch page for a single hero product.