Ungraded vs PSA 10 Black Knight #391: price difference
Black Knight #391 value — Ungraded $39 vs PSA 10 $68. PSA 10 sells for 1.74× Ungraded (+74%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 1.74× (+74%) the Ungraded price — a $29 difference per card.
Grade 9 sells for 1.46× (+46%) the Ungraded price — a $18 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Black Knight #391, the jump from Ungraded to PSA 10 is worth $29 (1.74×) — 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).