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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
$17
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 #5 #5
2021 · Upper Deck NHL Star Rookies Box Set
Spencer Knight #SPX-29 #SPX-29
2021 · Upper Deck SPx 1999-2000 Retro
Spencer Knight #RTL-SK #RTL-SK
2021 · Upper Deck Black Diamond Rookie Team Logo Jumbo Patches
Spencer Knight #5 #5
2021 · Upper Deck NHL Star Rookies Box Set
Spencer Knight #242 #242
2021 · Upper Deck MVP
Spencer Knight #T-95 #T-95
2021 · Upper Deck 2006-07 Retro
Cole Perfetti #RG-CP #RG-CP
2021 · Upper Deck Black Diamond Rookie Gems
Nils Lundkvist #RG-NL #RG-NL
2021 · Upper Deck Black Diamond Rookie Gems
Trevor Zegras #RG-TZ #RG-TZ
2021 · Upper Deck Black Diamond Rookie Gems
Trevor Zegras #RG-TZ #RG-TZ
2021 · Upper Deck Black Diamond Rookie Gems
Anton Lundell #RG-AL #RG-AL
2021 · Upper Deck Black Diamond Rookie Gems
Alex Turcotte #RG-AT #RG-AT
2021 · Upper Deck Black Diamond Rookie Gems
Spencer Knight #160 #160
2021 · Skybox Metal Universe
Spencer Knight #SK #SK
2021 · SPx Rookie Auto Jersey
Spencer Knight #AU-16 #AU-16
2021 · Skybox Metal Universe Amped Up
Alex Newhook #RG-AN #RG-AN
2021 · Upper Deck Black Diamond Rookie Gems
Dawson Mercer #RG-DM #RG-DM
2021 · Upper Deck Black Diamond Rookie Gems
Cole Perfetti #RG-CP #RG-CP
2021 · Upper Deck Black Diamond Rookie Gems