Gem-Knight Aquamarine
Battles of Legend: Monster Mayhem · BLMM-EN137 · Ultra Rare
Gem-Knight Aquamarine
Battles of Legend: Monster Mayhem · BLMM-EN137 · Ultra Rare
Fair value · 1st Edition · Near Mint
likely $0.07 – $0.12
−70%
past 90 days
- Liquidity
- Liquidsells about every 5 days · last today
- Sold, 30 days
- 3
- Lowest listing
- $0.09
- Market Price
- $0.21
Outlook · 90d
Storm watch
Fair value is dropping hard over the last few weeks.
- 7d
- −65%
- 30d
- −67%
- 90d
- −70%
Change to today's $0.09
From sales only · 3 sold, 30d
Every 1st Edition sale we've read, grouped by when and for how much they sold, with the fair value line through them. Hover a bubble for its sales; the legend adds the other conditions.
- Fair value · NM
- $0.09
- Change · 90d
- −13%
- Sales counted
- 3
- Most NM sold for
- $0.25 – $0.40
Forecast · NM · 30 days
$0.09−1.1%
fair value $0.07 – $0.11 · sales likely $0.06 – $0.13
- Buying pace
- ~3/wkselling slower
- Sales read
- 92over 119 days
Each bubble groups sales that sold close together in time and price, sized by how many; hover one for its sales. Solid counts toward fair value, hollow was left out. The line is fair value over time, from sales only, ending at today's. The strip underneath counts sales. Past today, the dashed line is the forecast: where fair value is heading from what sold and how fast it's selling. The shaded fan is how far fair value may move, 4 times in 5; it widens the further out it looks. The forecast never changes fair value. Price axis is logarithmic.
How each 1st Edition near mint copy sold. Times are US Central.
Liquid
Sells about every 5 days · last sold today
Typical sale, 30 days
$0.32
Trimmed average of counted sales
Lowest listed
- $0.09
Verified sellers, no photo listings · 259 listed
Oct 29
4:10 PM
Online · Buy it now$0.40
free ship
Oct 21
5:37 PM
Online · Buy it now$0.40
free ship
Oct 14
7:21 PM
Online · Buy it now$0.15
free ship
Formats
- TCGLegal
- OCGLegal
- Genesys0 pts
- GoatNot legal
- EdisonNot legal
For every printing of this card, from YGOPRODeck. Genesys has no banlist: cards cost points, and a deck may spend up to 100.
- Game
- Yu-Gi-Oh!
- Set
- Battles of Legend: Monster Mayhem (BLMM)
- Number
- BLMM-EN137
- Rarity
- Ultra Rare
- Type
- Single
- Released
- Jun 13, 2025
- Attack
- 1400
- Defense
- 2600
- Attribute
- EARTH
- Card Type
- Fusion/Effect Monster
- Description
- "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.
- MonsterType
- Aqua
