![Stephen Curry [Negative Refractor] #30 2023 Topps Chrome Basketball](/api/images/junkpal-products/sports/stephen-curry-negative-refractor-30-basketball-cards-2023-topps-chrome-sport/cover.webp)
Ungraded vs PSA 10 Stephen Curry [Negative Refractor] #30 2023 Topps Chrome Basketball: price difference
Stephen Curry [Negative Refractor] #30 2023 Topps Chrome Basketball value — Ungraded $10 vs PSA 10 $101. PSA 10 sells for 10.1× Ungraded (+910%). Prices updated July 2026.
Medians of real sold listings per grade, updated July 2026 — how we compute values.
PSA 10 sells for 10.1× (+910%) the Ungraded price — a $91 difference per card.
PSA 10 sells for 3.74× (+274%) the Grade 9 price — a $74 difference per card.
Should you get this card graded?
Grading runs about $30 per card all-in. On Stephen Curry [Negative Refractor] #30 2023 Topps Chrome Basketball, the jump from Ungraded to PSA 10 is worth $91 (10.1×) — 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).