2025-26 Upper Deck Black Diamond Rookie Gems Signatures Carter Mazur #RGS-CM
$4.78est. value (ungraded)
Prices updated 2026-10-16
Based on recorded sold prices how we price cards
Carter Mazur price history
PSA 10 market value, one reading a day. One-day spikes that reverse the next day are left out.
Recent recorded prices
8 recorded price points for the 2025-26 Upper Deck Black Diamond Rookie Gems Signatures Carter Mazur #RGS-CM from our sales and market data.
| Date | Source | Price |
|---|---|---|
| Oct 16, 2026 | Market value | $4.78 |
| Oct 15, 2026 | Market value | $4.78 |
| Oct 11, 2026 | Ebay Market | $24.55 |
| Oct 7, 2026 | Market value | $4.78 |
| Oct 7, 2026 | Market value | $4.78 |
| Oct 7, 2026 | Market value | $4.78 |
| Aug 18, 2026 | Ebay Market | $22.11 |
| Aug 17, 2026 | Market value | $4.78 |
Carter Mazur prices by grade
| Grade | Value | eBay |
|---|---|---|
| Ungraded | $4.78 | Buy on eBay ↗ |
| PSA 8 | $9.22 | Buy on eBay ↗ |
| PSA 9 | $17.17 | Buy on eBay ↗ |
| Grade 9.5 | $33.43 | Buy on eBay ↗ |
| PSA 10 | $49.52 | Buy on eBay ↗ |
| BGS 10 | $64.00 | Buy on eBay ↗ |
| CGC 10 | $30.00 | Buy on eBay ↗ |
| SGC 10 | $30.00 | Buy on eBay ↗ |
Live on eBay
Affiliate — we may earn a commission2025-26 Upper Deck Black Diamond Rookie Gems Signatures Carter Mazur #RGS-CM value & prices
The 2025-26 Upper Deck Black Diamond Rookie Gems Signatures Carter Mazur #RGS-CM is a Hockey card. Ungraded copies carry a market value of about $4.78.
An ungraded copy is worth around $4.78, a PSA 9 around $17.17, a PSA 10 (Gem Mint) around $49.52 and a pristine BGS 10 around $64.00. That's roughly a 10× 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 ($4.78) and top-graded ($49.52) 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.
More from 2025-26 Upper Deck Black Diamond Rookie Gems Signatures
