Matthew Knies #CG-31 Price Guide
Hockey · Hockey Cards 2023 Upper Deck Synergy Cast for Greatness
Matthew Knies #CG-31 (Hockey Cards 2023 Upper Deck Synergy Cast for Greatness) is currently worth $1.25 raw (near mint) and $50.38 in PSA 10 (as of Sep 3, 2026). Values come from the PriceCharting price guide and are refreshed weekly. Grading is the single biggest value lever — check the raw-to-PSA-10 gap below, then scan your copy to see if its centering makes the grade.
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Current prices
Raw (ungraded)
| Ungraded | $1.25 |
Graded — grade ladder
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Last updated 2026-09-03 · Source: the PriceCharting price guide
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Is it worth grading?
Strong grading candidate — 40× premium in PSA 10
A PSA 10 Matthew Knies #CG-31 sells for $50.38 against $1.25 raw: a $49.13 spread, 40× the ungraded price. A PSA 9 ($13.15) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
Full grading break-even for Matthew Knies #CG-31: fee tiers, best grader, gem-rate math →
Should I pay this?
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Matthew Knies #CG-31 — frequently asked
How much is Matthew Knies #CG-31 (Hockey Cards 2023 Upper Deck Synergy Cast for Greatness) worth?
As of Sep 3, 2026, Matthew Knies #CG-31 (Hockey Cards 2023 Upper Deck Synergy Cast for Greatness): an ungraded near-mint copy sells for about $1.25, a PSA 10 sells for about $50.38, a PSA 9 for about $13.15. Values come from the PriceCharting price guide and are refreshed weekly.
How much is a PSA 10 Matthew Knies #CG-31 worth?
As of Sep 3, 2026, a PSA 10 (Gem Mint) Matthew Knies #CG-31 (Hockey Cards 2023 Upper Deck Synergy Cast for Greatness) sells for about $50.38, compared with $1.25 for a raw near-mint copy.
Is Matthew Knies #CG-31 worth grading?
A PSA 10 Matthew Knies #CG-31 sells for $50.38 against $1.25 raw: a $49.13 spread, 40× the ungraded price. A PSA 9 ($13.15) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
Is Matthew Knies #CG-31 going up or down in value?
Matthew Knies #CG-31 (Hockey Cards 2023 Upper Deck Synergy Cast for Greatness) is up 0% over the last 30 days (PSA 10 market). Short-term moves on individual cards are noisy — check the price history above for the trend.
Where do these Hockey card prices come from?
Prices are the PriceCharting price guide, refreshed weekly. Raw values reflect near-mint (NM) ungraded copies; graded values are per grading company and grade.