Kon Knueppel [Refractor Blue] #YQ-4 Price Guide
Basketball · Basketball Cards 2025 Topps Chrome Youthquake
Kon Knueppel [Refractor Blue] #YQ-4 (Basketball Cards 2025 Topps Chrome Youthquake) is currently worth $56.92 raw (near mint) and $288 in PSA 10 (as of Sep 4, 2026). Values come from the PriceCharting price guide and are refreshed weekly. Grading is the single biggest value lever — check the raw-to-PSA-10 gap below, then scan your copy to see if its centering makes the grade.
Current prices
Raw (ungraded)
| Ungraded | $56.92 |
Graded — grade ladder
Swipe the table for the other grading companies →
Last updated 2026-09-04 · Source: the PriceCharting price guide
Shop this card on eBay ↗As an eBay Partner, Midpoint may earn commission from qualifying purchases.
Is it worth grading?
Strong grading candidate — 5.1× premium in PSA 10
A PSA 10 Kon Knueppel [Refractor Blue] #YQ-4 sells for $288 against $56.92 raw: a $231 spread, 5.1× the ungraded price. A PSA 9 ($80.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
Should I pay this?
Enter the seller’s asking price to see your net outcome per grade.
More from 2025 Topps Chrome Youthquake
Full set checklist →![Cooper Flagg [Refractor Red] #YQ-1 2025 Topps Chrome Youthquake card](https://i.ebayimg.com/images/g/v18AAeSwrA1pqMnK/s-l500.jpg)
![Cooper Flagg [Refractor Gold Geometric] #YQ-1 2025 Topps Chrome Youthquake card](https://i.ebayimg.com/images/g/D7EAAeSwS3BqkcaM/s-l500.jpg)
![Cooper Flagg [Refractor Purple Geometric] #YQ-1 2025 Topps Chrome Youthquake card](https://i.ebayimg.com/images/g/7sEAAeSwAzZqXRSt/s-l500.jpg)
![Cooper Flagg [Refractor Green Geometric] #YQ-1 2025 Topps Chrome Youthquake card](https://i.ebayimg.com/images/g/0IgAAeSwYwFpw~lj/s-l500.jpg)
More Kon Knueppel cards
All Kon Knueppel cards →![Kon Knueppel [Black Refractor] #TCAR-KK 2025 Topps Chrome Rookie Autograph card](https://i.ebayimg.com/images/g/k-oAAeSwgW9qkfBa/s-l500.jpg)
![Kon Knueppel [Gold Refractor] #TCAR-KK 2025 Topps Chrome Rookie Autograph card](https://i.ebayimg.com/images/g/GMwAAeSwLqJqFyk8/s-l500.jpg)
![Kon Knueppel [Refractor Black] #FS-KK 2025 Topps Chrome Future Stars Autograph card](https://i.ebayimg.com/images/g/S2QAAeSwseNqdKII/s-l500.jpg)
![Kon Knueppel [Green Refractor] #TCAR-KK 2025 Topps Chrome Rookie Autograph card](https://i.ebayimg.com/images/g/2msAAeSw-JRqmeeX/s-l500.jpg)
Best on iPhone & Android
Check your basketball card in the Midpoint app
Scan with your camera to measure centering to the millimeter, get an AI grade with corner and edge close-ups, see what your copy is worth, and track it in your portfolio. Free to start.
Price alert
Watching this card? Set a line and Midpoint tells you the day the market crosses it — waiting to buy the dip or sell the spike.
Kon Knueppel [Refractor Blue] #YQ-4 — frequently asked
How much is Kon Knueppel [Refractor Blue] #YQ-4 (Basketball Cards 2025 Topps Chrome Youthquake) worth?
As of Sep 4, 2026, Kon Knueppel [Refractor Blue] #YQ-4 (Basketball Cards 2025 Topps Chrome Youthquake): an ungraded near-mint copy sells for about $56.92, a PSA 10 sells for about $288, a PSA 9 for about $80.00. Values come from the PriceCharting price guide and are refreshed weekly.
How much is a PSA 10 Kon Knueppel [Refractor Blue] #YQ-4 worth?
As of Sep 4, 2026, a PSA 10 (Gem Mint) Kon Knueppel [Refractor Blue] #YQ-4 (Basketball Cards 2025 Topps Chrome Youthquake) sells for about $288, compared with $56.92 for a raw near-mint copy.
Is Kon Knueppel [Refractor Blue] #YQ-4 worth grading?
A PSA 10 Kon Knueppel [Refractor Blue] #YQ-4 sells for $288 against $56.92 raw: a $231 spread, 5.1× the ungraded price. A PSA 9 ($80.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
Where do these Basketball card prices come from?
Prices are the PriceCharting price guide, refreshed weekly. Raw values reflect near-mint (NM) ungraded copies; graded values are per grading company and grade.