![Bryce Harper [Gray Jersey] #351 2018 Topps Baseball](/api/images/junkpal-products/sports/bryce-harper-gray-jersey-351-baseball-cards-2018-topps-sport/cover.webp)
Ungraded vs Grade 9 Bryce Harper [Gray Jersey] #351 2018 Topps Baseball: price difference
Bryce Harper [Gray Jersey] #351 2018 Topps Baseball value — Ungraded $105 vs Grade 9 $156. Grade 9 sells for 1.49× Ungraded (+49%). Prices updated June 2026.
Medians of real sold listings per grade, updated June 2026 — how we compute values.
Ungraded vs Grade 9
$105→$156
Grade 9 sells for 1.49× (+49%) the Ungraded price — a $51 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Bryce Harper [Gray Jersey] #351 2018 Topps Baseball, the jump from Ungraded to Grade 9 is worth $51 (1.49×) — 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).