Third-party grading, like PSA, emerged as a valuable addition to the collecting industry, providing assurance about an item's condition and bringing additional liquidity to the hobby. Fast-forward ...

In March, a PSA 10 sold for $3,200 on eBay. Less than 1 percent (306 of 62,842) are in perfect 10, Gem Mint condition. Note that there was no grading at the time of release, so you couldn’t ...

Photo Courtesy of PSA Prices for the Wembanyama base rookie card in PSA 10 are in free fall and, given the supply, are likely to see further declines. In early August, card sales averaged about $ ...