Ungraded vs PSA 10 Gary Plummer #156 1984 Star Basketball: price difference
Gary Plummer #156 1984 Star Basketball value — Ungraded $4 vs PSA 10 $303. PSA 10 sells for 75.75× Ungraded (+7475%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 75.75× (+7475%) the Ungraded price — a $299 difference per card.
Grade 9 sells for 66.75× (+6575%) the Ungraded price — a $263 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Gary Plummer #156 1984 Star Basketball, the jump from Ungraded to PSA 10 is worth $299 (75.75×) — 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).