![Mr. Stone's Project [Reverse Holo] #88](/api/images/junkpal-products/cards/mr-stone-s-project-reverse-holo-88-pokemon-holon-phantoms-card/img0/cover.webp)
Ungraded vs PSA 10 Mr. Stone's Project [Reverse Holo] #88: price difference
Mr. Stone's Project [Reverse Holo] #88 value — Ungraded $14 vs PSA 10 $338. PSA 10 sells for 24.14× Ungraded (+2314%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 24.14× (+2314%) the Ungraded price — a $324 difference per card.
PSA 10 sells for 11.66× (+1066%) the Grade 9 price — a $309 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Mr. Stone's Project [Reverse Holo] #88, the jump from Ungraded to PSA 10 is worth $324 (24.14×) — if your copy grades at the top, that premium can cover the fee. 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).