Value by grade and company
Raw (ungraded) price: £1.79. At grade 10 the PSA, BGS and CGC figures are that grader's own market data. At grade 9 the source publishes ONE figure for all graders, so those cells read "all graders" and are identical by definition. TAG is approximate (snapped to the nearest bucket). ACE has no data source yet and is never estimated.
PSA 10 price history
Tracking starts soon. The chart builds forward from launch and is never backfilled.
Prices by PriceCharting