![Thundurus [Master Ball] #33](/api/images/junkpal-products/cards/thundurus-master-ball-33-pokemon-black-bolt-card/img0/cover.webp)
Ungraded vs PSA 10 Thundurus [Master Ball] #33: price difference
Thundurus [Master Ball] #33 value — Ungraded $7 vs PSA 10 $44. PSA 10 sells for 6.29× Ungraded (+529%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 6.29× (+529%) the Ungraded price — a $37 difference per card.
PSA 10 sells for 11× (+1000%) the Grade 9 price — a $40 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Thundurus [Master Ball] #33, the jump from Ungraded to PSA 10 is worth $37 (6.29×) — 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).