2025-26 Bowman University Best Iso Signatures Brynn McGaughy Green Mini-Diamond Refractor #IS-BM
2026
See all Brynn McGaughy cards & valuesCommon
$3.50est. value (ungraded)
Prices updated 2026-10-23
Based on recorded sold prices how we price cards
Card number
#IS-BM
Year
2026
Parallel / variant
Green Mini-Diamond Refractor
Price by month
Average price of the 2025-26 Bowman University Best Iso Signatures Brynn McGaughy Green Mini-Diamond Refractor #IS-BM 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.
Recorded high
$3.50
Recorded low
$3.50
| Month | Source | Average | Range |
|---|---|---|---|
| Oct 2026 | Market value | $3.50 | — |
Brynn McGaughy prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $3.50 | Buy on eBay ↗ |
| PSA 8 | $8.15 | Buy on eBay ↗ |
| PSA 9 | $15.46 | Buy on eBay ↗ |
| Grade 9.5 | $30.34 | Buy on eBay ↗ |
| PSA 10 | $45.65 | Buy on eBay ↗ |
| BGS 10 | $59.00 | Buy on eBay ↗ |
| CGC 10 | $18.00 | Buy on eBay ↗ |
| SGC 10 | $27.00 | Buy on eBay ↗ |
Other versions of this Brynn McGaughy card
2 versions, each priced on its own. Most valuable first.
Live on eBay
Affiliate — we may earn a commission2025-26 Bowman University Best Iso Signatures Brynn McGaughy Green Mini-Diamond Refractor #IS-BM value & prices
The 2025-26 Bowman University Best Iso Signatures Brynn McGaughy Green Mini-Diamond Refractor #IS-BM is a Basketball card (Green Mini-Diamond Refractor parallel) released in 2026. Ungraded copies carry a market value of about $3.50.
An ungraded copy is worth around $3.50, a PSA 9 around $15.46, a PSA 10 (Gem Mint) around $45.65 and a pristine BGS 10 around $59.00. That's roughly a 13× 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?
The spread between raw ($3.50) and top-graded ($45.65) copies is fairly tight, so grading this card only makes financial sense for truly flawless copies — or for collectors who simply prefer slabbed cards for protection and display.
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Brynn McGaughy2025-26 Bowman University Best Iso Signatures2026Basketball cardsGreen Mini-Diamond RefractorPSA 10BGS 10card valueprice guide