- tcgrate
- Games
- Yu-Gi-Oh!
- Sets
- Battles of Legend: Monster Mayhem
- Gem-Knight Ruby
Yu-Gi-Oh! · Battles of Legend: Monster Mayhem · #BLMM-EN136 · Ultra Rare
Gem-Knight Ruby
Yu-Gi-Oh! card price for Gem-Knight Ruby: $0.21 market, from $0.01 at the cheapest listing, 1st Edition printing, updated Oct 18, 2026. Full price history since Jun 12, 2025 below.
Sellers right now
Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.
Where to buy
One year
Price story
Gem-Knight Ruby came out in June 2025; we leave the first weeks out of this story, because early prices are set before real supply exists. Across the past year it went +75.0%, with a low of $0.09 and a high of $0.28; today it sits in the middle of that range. Listings currently start at $0.01; over the last 30 days the market price averaged $0.24.
Printings
The card in play
- Card type
- Fusion/Effect Monster
- Attribute
- EARTH
- Monster type
- Pyro
"Gem-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-" 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.
