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Gem-Knight Sardonyx — Hidden Arsenal 7: Knight of Stars Yu-Gi-Oh! card
Yu-Gi-Oh! · Super RareLive pricing

Gem-Knight Sardonyx

Trending Up+21.7%
Gem-Knight Sardonyx's Near Mint price is up 32.7% ($0.18) over the past 30 days.
21h ago· Updated Nov 6, 2026
Card Details
TypeMonster — Pyro
Mana CostLevel 4
P/TATK 1800 / DEF 900
RacePyro
ArchetypeGem-
AttributeEARTH
Frame Typeeffect
Human Readable TypeGemini Effect Monster
Card TextThis card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it become an Effect Monster with this effect. ● When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can add 1 "Gem-Knight" card from your Deck to your hand.
inkwell Fair Value™?· NM
$0.73
single source
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—
Condition?
Confidencemedium
Prices as ofNov 6
Normal—
Cheapest printing$0.63
Set Price Alert

Why This Price

inkwell Estimate
Fair Value$0.73
Movement
7D Change+21.7% (+$0.13)
30D Change+32.7% (+$0.18)
Freshness
Prices as ofNov 6
Update cadenceDaily
Inkwell Fair Value$0.73NM · compare before you buy
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More from Hidden Arsenal 7: Knight of Stars

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2 Printings
How much is Gem-Knight Sardonyx worth?
The current Near Mint price for Gem-Knight Sardonyx from Hidden Arsenal 7: Knight of Stars (Yu-Gi-Oh!) is $0.73. It has increased 21.7% over the past 7 days.
What set is Gem-Knight Sardonyx from?
Gem-Knight Sardonyx is from the Hidden Arsenal 7: Knight of Stars set, released April 2013. It is a Super Rare in Yu-Gi-Oh!.
What rarity is Gem-Knight Sardonyx?
Gem-Knight Sardonyx is a Super Rare card from Hidden Arsenal 7: Knight of Stars in Yu-Gi-Oh!.
How has the price of Gem-Knight Sardonyx changed over the past 30 days?
Over the past 30 days, the Near Mint price of Gem-Knight Sardonyx has risen 32.7% ($0.18) to $0.73.
How many printings of Gem-Knight Sardonyx exist?
Gem-Knight Sardonyx has 2 printings across different Yu-Gi-Oh! sets. The cheapest printing is $0.63 from Duel Terminal 7.