GRADING · BOARD
Cross-Grade
Slabs worth crossing into the most valuable 10 — the price gap between what you hold and that equivalent, net of the crossover fee. Measured on recent comps, not guaranteed.
See every crossover
The full board (not just the top 5) · every source company, era and price band.
How to read this board
The gap between what a slab in one company's holder sells for and what the most valuable 10 equivalent sells for, minus the crossover submission fee.
The card has to actually re-grade a 10. The gem rate column is the best available read on that risk, and a cross that comes back a 9 can wipe out the whole edge.
Comps counts the recent comparable sales behind both prices. Under 5 is marked THIN — those edges are built on very little evidence.
UPDATED 2026-09-13 · 1,644 CROSSOVER ROUTES · NET OF THE BASE FEE · NOT A GUARANTEE OF RE-GRADE