- tcgrate
- Games
- Yu-Gi-Oh!
- Sets
- Battles of Legend: Monster Mayhem
- Gem-Knight Aquamarine
Yu-Gi-Oh! · Battles of Legend: Monster Mayhem · #BLMM-EN137 · Ultra Rare
Gem-Knight Aquamarine
Yu-Gi-Oh! card price for Gem-Knight Aquamarine: $0.21 market, from $0.03 at the cheapest listing, 1st Edition printing, updated Oct 19, 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 Aquamarine was released in June 2025. Launch-week prices are left out here: before supply arrives they are mostly guesses. Over the past twelve months it moved +61.5%, trading between $0.07 and $0.28. The current price is in the middle of that range. The cheapest listing right now is $0.03, and the 30-day average market price is $0.21.
Printings
The card in play
- Card type
- Fusion/Effect Monster
- Attribute
- EARTH
- Monster type
- Aqua
"Gem-Knight Sapphire" + 1 "Gem-Knight" monster
Must first be Fusion Summoned with the above Fusion Material Monsters. If this card attacks, it is changed to Defense Position at the end of the Battle Phase. When this card is sent from the field to the Graveyard: Target 1 card your opponent controls; return that target to the hand.
