The 2023 Panini Mosaic Victor Wembanyama Reactive Blue #257 is valued at $45.53 raw, $78.70 in PSA 9, $278 in PSA 10 as of November 3, 2026. Its market value has held steady over the last 30 days, moving +0.1% to $45.53. Across the 88 days we have tracked it, it has ranged from $40.00 to $52.00, and it currently sits 12% below that high. With 218 recorded sales, it ranks #300 of 500 basketball cards we track by trading volume.
On current values, a PSA 9 ($78.70) is worth $8.17 more than a raw copy plus a $25.00 grading fee, and a PSA 10 ($278, 6.1× raw) is worth $207 more. The cheapest Raw copy we matched on eBay when we last checked on November 3, 2026 was $49.00, 8% above our Raw market value of $45.53, so eBay offers no discount on this card right now.
About $45.53 raw, $78.70 in PSA 9, $278 in PSA 10, based on our market values as of November 3, 2026. Its market value has held steady over the last 30 days, moving +0.1% to $45.53.
On current values, a PSA 9 ($78.70) is worth $8.17 more than a raw copy plus a $25.00 grading fee, and a PSA 10 ($278, 6.1× raw) is worth $207 more. This ignores gem rate and selling fees, so treat it as a best case.
The cheapest Raw copy we matched on eBay when we last checked on November 3, 2026 was $49.00, 8% above our Raw market value of $45.53, so eBay offers no discount on this card right now.