![Koraidon [Reverse Holo] #90](/api/images/junkpal-products/cards/koraidon-reverse-holo-90-pokemon-stellar-crown-card/img0/cover.webp)
Grade 9 vs PSA 10 Koraidon [Reverse Holo] #90: price difference
Koraidon [Reverse Holo] #90 value — Grade 9 $18 vs PSA 10 $33. PSA 10 sells for 1.83× Grade 9 (+83%). Prices updated July 2026.
↘ Falling · -77%
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Grade 9 vs PSA 10
$18→$33
PSA 10 sells for 1.83× (+83%) the Grade 9 price — a $15 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Koraidon [Reverse Holo] #90, the jump from Grade 9 to PSA 10 is worth $15 (1.83×) — at today's prices that doesn't cover the fee — grading this one is for the collection, not the flip. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).