A real faceting workbench: slice a 3D gem with true index-gear geometry, browse a deep library of designs, follow step-by-step cutting guides, and render the result with a live raytracer. No install, no download.
Pluto merges the design table, cutting guide and render viewer into one studio, all driven by the same convex plane-clipping engine.
Start from a rough stone and cut your own faceting design with real index-gear geometry, symmetry and meetpoint chaining. Press Cut and the 3D gem is actually sliced.
Create original cutsBrowse and filter a curated library of designs, then render each one in any of 100+ gem materials to preview fire, brilliance and colour.
Explore the libraryFollow a guided, step-by-step cutting sequence with every tier, angle and index position spelled out, so you can take a design from the screen to the lap with confidence.
Step-by-step guideA genuine in-browser raytracer, plus the reference tools a faceter actually reaches for. No spreadsheets, no side apps.
Start from a rough stone and build an original faceting design with real index-gear geometry, symmetry and meetpoint chaining. Press Cut and the 3D gem is actually sliced. Put it under Pluto's optical analysers to measure light and fire long before you touch a lap.
Analyse Light fires tens of thousands of rays across 17 viewing directions and reports how much light your design returns to the eye, plus where the rest escapes.
Analyse Fire sends dispersed red-and-blue rays through the stone to quantify fire, the rainbow sparkle a design coaxes out of a material's dispersion.
A gem is never viewed dead face-up. Tilt Analysis rocks the stone through tilt along both the X and Y axes and charts how much light the design keeps returning at every angle, so you can tell whether it stays alive in the hand or goes dark the moment it moves.
Cut mode turns any design into a step-by-step cutting sequence and shows the 3D gem taking shape facet by facet as you work down the list.
Follow the sequence on screen and watch the rough resolve into a finished cut. The next facet is highlighted live, so there's no guesswork between the design table and the lap.
Every design and cutting guide in Pluto comes from a faceter who competes, and wins, at the highest level in the country.
Pluto is built hand-in-hand with my brother Rowan, a competitive faceter who swept five 1st-place awards at the 2023 Australian Facetors Guild competition, across brilliants, step cuts and fantasy designs, in everything from topaz to cubic zirconia.
In 2024 he stepped up to the Guild's Intermediate division and kept winning, taking 1st place with two stones scored at 99.69 and 99.47 out of 100, within a whisker of a perfect card. Each is graded facet by facet under the loupe against exacting meetpoint standards.
That same precision is baked into every design and guided cut in the studio.
Classic brilliants, step cuts, barions, hearts, fantasy cuts and originals, every one a real, cuttable meetpoint design. And the collection keeps growing.
In Roman myth, Pluto ruled the underworld, and with it every precious thing buried beneath the earth: the metals and gemstones hidden in the dark. The god of gems, of riches below.
Unearthed is the joy of bringing them up into the light: a studio for cutting and discovering gems.
Open the studio and start cutting. No download, nothing to pay, no sign-up needed to begin. Create a free account any time to save your own designs to the cloud.
