Ungraded vs Grade 9 Petra Sphinx: price difference
Petra Sphinx value — Ungraded $9 vs Grade 9 $46. Grade 9 sells for 5.11× Ungraded (+411%). Prices updated July 2026.
↗ Rising · +10%
Medians of real sold listings per grade, updated July 2026 — how we compute values.
Ungraded vs Grade 9
$9→$46
Grade 9 sells for 5.11× (+411%) the Ungraded price — a $37 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Petra Sphinx, the jump from Ungraded to Grade 9 is worth $37 (5.11×) — 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).