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Upper Deck Black Diamond Rookie Gems · #RG-SK · 2021
PSA 10 $
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PSA 10 Pop
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Gem Rate
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30D Change
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Market data as of Jun 25, 2026
Opportunity
48.0
See pricing to unlock Collector, Investor & Speculation scores
PSA10 / PSA9
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Active Listings
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PSA10 Mkt Cap
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PSA 10 Price
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30D PSA10
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90D PSA10
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Raw Price
$6
30D Raw
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90D Raw
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No pricing data available.
No BGS or CGC data yet.
PSA Full Grade Breakdown (1–10)
Spencer Knight #RG-SK #RG-SK
2021 · Upper Deck Black Diamond Rookie Gems
Spencer Knight #DC-SK #DC-SK
2021 · Upper Deck Black Diamond Cutters
Spencer Knight #DD-SK #DD-SK
2021 · Upper Deck Black Diamond Debut Relics
Spencer Knight #R-SK #R-SK
2021 · Upper Deck Black Diamond Exquisite Collection Rookies
Spencer Knight #111 #111
2022 · Upper Deck Stature 2021 Update Autograph
Spencer Knight #RC-7 #RC-7
2021 · SP Game Used 2003-04 Retro Rookies
Spencer Knight #RS-SK #RS-SK
2022 · Upper Deck Artifacts Year One Rookie Sweaters
Benoit Olivier Groulx #RG-BO #RG-BO
2021 · Upper Deck Black Diamond Rookie Gems
Jeremy Swayman #RG-JS #RG-JS
2021 · Upper Deck Black Diamond Rookie Gems
Alex Turcotte #RG-AT #RG-AT
2021 · Upper Deck Black Diamond Rookie Gems
Alex Newhook #RG-AN #RG-AN
2021 · Upper Deck Black Diamond Rookie Gems
William Eklund #RG-WE #RG-WE
2021 · Upper Deck Black Diamond Rookie Gems
Wade Allison #RG-WA #RG-WA
2021 · Upper Deck Black Diamond Rookie Gems
Spencer Knight #DG-SK #DG-SK
2021 · Upper Deck Black Diamond Gallery
Anton Lundell #RG-AL #RG-AL
2021 · Upper Deck Black Diamond Rookie Gems
Quinton Byfield #RG-QB #RG-QB
2021 · Upper Deck Black Diamond Rookie Gems
Filip Gustavsson #RG-FG #RG-FG
2021 · Upper Deck Black Diamond Rookie Gems
Jamie Drysdale #RG-JD #RG-JD
2021 · Upper Deck Black Diamond Rookie Gems
Alex Newhook #RG-AN #RG-AN
2021 · Upper Deck Black Diamond Rookie Gems