2025-26 Bowman Greatness Loading Cooper Flagg Mini-Diamond Refractor #GL-1
2026
See all Cooper Flagg cards & values2025 seasonDuke Blue Devils men's basketballDallas MavericksCooper Flagg career & card values
$124.25est. value (ungraded)
Prices updated 2026-10-24
Based on recorded sold prices how we price cards
Price by month
Average price of the 2025-26 Bowman Greatness Loading Cooper Flagg Mini-Diamond Refractor #GL-1 each month, from 1 recorded price reading. Prices are re-checked regularly; a month's average counts each day from that month's first reading at the price that held that day.
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $124.25 | — |
Cooper Flagg prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $124.25 | Buy on eBay ↗ |
| PSA 8 | $116.40 | Buy on eBay ↗ |
| PSA 9 | $202.58 | Buy on eBay ↗ |
| Grade 9.5 | $383.76 | Buy on eBay ↗ |
| PSA 10 | $576.54 | Buy on eBay ↗ |
| BGS 10 | $750.00 | Buy on eBay ↗ |
| CGC 10 | $231.00 | Buy on eBay ↗ |
| SGC 10 | $346.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2025-26 Bowman Greatness Loading Cooper Flagg Mini-Diamond Refractor #GL-1 value & prices
The 2025-26 Bowman Greatness Loading Cooper Flagg Mini-Diamond Refractor #GL-1 is a Basketball card (Mini-Diamond Refractor parallel) released in 2026. Ungraded copies carry a market value of about $124.25.
An ungraded copy is worth around $124.25, a PSA 9 around $202.58, a PSA 10 (Gem Mint) around $576.54 and a pristine BGS 10 around $750.00. That's roughly a 4.6× premium for a gem-mint copy over raw — one of the clearest signals that condition-sensitive buyers dominate this card's market.
Is it worth grading?
With raw copies near $124.25 and top grades reaching $576.54, grading a sharp copy of this card can clearly pay for itself — the spread comfortably covers a typical ~$25.00 grading fee. The catch: only submit copies with strong centering, clean corners, and unmarked surfaces, because anything below a 9 usually erases the math.
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