![Marcelo Mayer [Black Bordered] #356 2026 Topps Heritage Baseball](/api/images/junkpal-products/sports/marcelo-mayer-black-bordered-356-baseball-cards-2026-topps-heritage-sport/cover.webp)
Ungraded vs PSA 10 Marcelo Mayer [Black Bordered] #356 2026 Topps Heritage Baseball: price difference
Marcelo Mayer [Black Bordered] #356 2026 Topps Heritage Baseball value — Ungraded $20 vs PSA 10 $108. PSA 10 sells for 5.4× Ungraded (+440%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 5.4× (+440%) the Ungraded price — a $88 difference per card.
PSA 10 sells for 2.92× (+192%) the Grade 9 price — a $71 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Marcelo Mayer [Black Bordered] #356 2026 Topps Heritage Baseball, the jump from Ungraded to PSA 10 is worth $88 (5.4×) — 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).