![Greg Allen [Negative Refractor] #84 2018 Topps Chrome Baseball](/api/images/junkpal-products/sports/greg-allen-negative-refractor-84-baseball-cards-2018-topps-chrome-sport/cover.webp)
Ungraded vs PSA 10 Greg Allen [Negative Refractor] #84 2018 Topps Chrome Baseball: price difference
Greg Allen [Negative Refractor] #84 2018 Topps Chrome Baseball value — Ungraded $2 vs PSA 10 $10. PSA 10 sells for 5× Ungraded (+400%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
PSA 10 sells for 5× (+400%) the Ungraded price — a $8 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Greg Allen [Negative Refractor] #84 2018 Topps Chrome Baseball, the jump from Ungraded to PSA 10 is worth $8 (5×) — 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).