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Gem-Knight Ruby — Hidden Arsenal 5: Steelswarm Invasion Yu-Gi-Oh! card
Yu-Gi-Oh! · Secret RareLive pricing

Gem-Knight Ruby

Stable+1.5%
Hidden Arsenal 5: Steelswarm Invasion, 2011 · #HA05-EN019
Gem-Knight Ruby's Near Mint price is down 1.9% ($0.04) over the past 30 days.
7h ago· Updated Oct 28, 2026
Card Details
TypeMonster — Pyro / Fusion / Effect
Mana CostLevel 6
P/T2500 / 1300
ArtistKAZUKI TAKAHASHI
RacePyro
ArchetypeGem-
AttributeEARTH
Frame Typefusion
Human Readable TypeFusion Effect Monster
Card TextGem-Knight Garnet" + 1 "Gem-Knight" monster. Must first be Fusion Summoned with the above Fusion Material Monsters. Once per turn: You can Tribute 1 face-up "Gem-Knight" monster; this card gains ATK equal to the Tributed monster's ATK on the field, until the End Phase. If this card attacks a Defense Position monster, inflict piercing Battle Damage to your opponent.
inkwell Fair Value™?· NM
$2.02
single source
—
—
Condition?
Confidencemedium
Prices as ofOct 28
Normal—
Cheapest printing$0.19
Set Price Alert

Why This Price

inkwell Estimate
Fair Value$2.02
Movement
7D Change+1.5% (+$0.03)
30D Change-1.9% (-$0.04)
Freshness
Prices as ofOct 28
Update cadenceDaily
Inkwell Fair Value$2.02NM · compare before you buy
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3 Printings
How much is Gem-Knight Ruby worth?
The current Near Mint price for Gem-Knight Ruby from Hidden Arsenal 5: Steelswarm Invasion (Yu-Gi-Oh!) is $2.02. It has increased 1.5% over the past 7 days.
What set is Gem-Knight Ruby from?
Gem-Knight Ruby is from the Hidden Arsenal 5: Steelswarm Invasion set, released December 2011. It is a Secret Rare in Yu-Gi-Oh!.
What rarity is Gem-Knight Ruby?
Gem-Knight Ruby is a Secret Rare card from Hidden Arsenal 5: Steelswarm Invasion in Yu-Gi-Oh!.
How has the price of Gem-Knight Ruby changed over the past 30 days?
Over the past 30 days, the Near Mint price of Gem-Knight Ruby has fallen 1.9% ($0.04) to $2.02.
How many printings of Gem-Knight Ruby exist?
Gem-Knight Ruby has 3 printings across different Yu-Gi-Oh! sets. The cheapest printing is $0.19 from Battles of Legend: Monster Mayhem.