GemCheck – PoE Transfigured Gem Calculator

Shows the most profitable transfigured gems to hunt via the Labyrinth Divine Font, with color-roll EV and per-gem probabilities.

GemCheck overlays a floating panel on poe.ninja's skill gem price page and instantly tells you which transfigured gems are worth hunting at the Labyrinth Divine Font. ─── HOW THE DIVINE FONT WORKS ─────────────────────────────────────────── The Divine Font offers two ways to transfigure a gem: Color Roll — insert any gem of a colour and receive a random transfigured gem from that colour's entire pool (equal chance for each gem in the pool). Specific Roll — insert a specific base gem and receive one of that gem's transfigured variants at random (equal chance per variant). GemCheck calculates the expected value (EV) and hit probabilities for both modes so you can make informed decisions before you run the lab. ─── FEATURES ──────────────────────────────────────────────────────────── • Color Roll Bingo — for each colour (Red / Green / Blue) shows the top target gems with their hit probability and current sell price. • Best Specific Gems — a combined cross-colour ranking of all base gems sorted by EV, with every variant's probability and sell price listed. • Live pricing — pulls directly from poe.ninja's API for the current league. Data is cached for 5 minutes; a Refresh button busts the cache. • League auto-detection — reads the league from the poe.ninja URL, so it always shows data for the league you are browsing. • Draggable panel — reposition anywhere on screen; minimise or close when not needed. • Configurable Top N — choose how many gems to show per section (3 / 5 / 8). ─── USAGE ─────────────────────────────────────────────────────────────── Navigate to poe.ninja › Economy › [your league] › Skill Gems. The GemCheck panel appears automatically. ─── NOTES ─────────────────────────────────────────────────────────────── • Prices shown are raw sell prices (cheapest non-corrupted listing on poe.ninja). Base gem cost and lab fees are not deducted. • This extension only runs on poe.ninja. No data is collected, stored, or sent anywhere. • Gem pool data sourced from the Path of Exile wiki. ```