Gem-Knight Aquamarine
Fusion Effect Monster
Gem-Knight Aquamarine is a Fusion Effect Monster (EARTH/Aqua, Level 6) with 1400 ATK / 2600 DEF. First printed in Duel Terminal 5a (2011).
- Type
- Fusion Monster
- Attribute
- EARTH
- Monster type
- Aqua
- Level
- 6
- ATK / DEF
- 1400 / 2600
- Archetype
- Gem-
- Banlist
- Unlimited in the TCG, OCG, and Master Duel
- TCG release
- May 29, 2011
- Printings
- 3
Card text
"Gem-Knight Sapphire" + 1 "Gem-Knight" monster Must first be Fusion Summoned with the above Fusion Materials. If this card attacks, it is changed to Defense Position at the end of the Battle Phase. If this card is sent from the field to the GY: Target 1 card your opponent controls; return that target to the hand.
YGOPRODeck card-level price
≈$0.21 lowest USD figure across marketplaces, for no one printing
YGOPRODeck recorded a lowest available USD card-level price hint of ~$0.21 on Oct 26, 2026 (historical, not a printing-specific quote). It varies with printing, condition, edition, rarity, and grading. Check current listings before buying or selling.
Find a copy
As an Amazon Associate I earn from qualifying purchases. This site also participates in the eBay Partner Network and other affiliate programs: marketplace links on this page are affiliate links, and if you buy through them we earn a commission, at no extra cost to you.
Printings & rarities
| Set | Set code | Rarity | Release | Price* | Buy |
|---|---|---|---|---|---|
| Duel Terminal 5aDT05-EN035 · Duel Terminal Super Parallel Rare · May 29, 2011 | DT05-EN035 | Duel Terminal Super Parallel Rare | May 29, 2011 | ~$2.06Limited | Buy on TCGplayerSearch eBay |
| Hidden Arsenal 5: Steelswarm InvasionHA05-EN020 · Secret Rare · Dec 1, 2011 | HA05-EN020 | Secret Rare | Dec 1, 2011 | ~$1.29 1st Edition~$0.78 Unlimited | Buy on TCGplayerSearch eBay |
| Battles of Legend: Monster MayhemBLMM-EN137 · Ultra Rare · Aug 28, 2025 | BLMM-EN137 | Ultra Rare | Aug 28, 2025 | ~$0.211st Edition | Buy on TCGplayerSearch eBay |
*Approximate price hints, not appraisals. A price with a finish (1st Edition, Unlimited, Limited) is TCGplayer's for that set code, rarity and finish, via TCGCSV, updated Oct 26, 2026. A price marked YGOPRODeck is YGOPRODeck's figure for that printing. A dash means that printing has no price yet. Buy links are affiliate links.
Price hint history
Dated YGOPRODeck snapshots. These hints are not sales or market values.
Loading price history…
Gem-Knight Aquamarine in other languages
| Japanese | ジェムナイト・アクアマリナ |
| Korean | 젬나이트 아쿠아마리나 |
| Chinese | 宝石骑士・海蓝玉 |
| German | Edelstein-Ritter Aquamarin |
| French | Aigue-Marine, Chevalier-Gemmes |
| Italian | Cavaliere-Gemma Acquamarina |
| Spanish | Caballero-Gema Aguamarina |
| Portuguese | Cavaleiro-Gema Água-Marinha |
