Ultra Rare

Gem-Knight Aquamarine Battles of Legend: Monster Mayhem #BLMM-EN137

Card #BLMM-EN137

Market value · ungraded

$0.22

▲ 46.7% · 30d

PSA 10

$31

142× raw

Blended from live market data · graded from real sold data
Confidence medium · How we price →

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Gem-Knight Aquamarine is a Ultra Rare Yu-Gi-Oh! card from Battles of Legend: Monster Mayhem (#BLMM-EN137). Its current blended market value is $0.22 ungraded, with a PSA 10 worth around $31. Prices update from real market data.

Graded prices

Ungraded (raw)$0.22

PSA graded price estimates by grade
Grade	Relative value	Price
PSA 10		$31$31–$31
PSA 9		$6$6–$6

“Sold” = median of real recent sold listings at that grade (eBay or Fanatics Collect — hover a badge to see which). Other figures are blended marketplace estimates. Confidence reflects source backing and price spread — not PSA-official values.

Available to buy nowLive on eBay

Card details

Set: Battles of Legend: Monster Mayhem
Number: #BLMM-EN137
Rarity: Ultra Rare
Game: Yu-Gi-Oh!

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Where to buy & check prices

Check recent sold prices

eBay sold

Frequently asked questions

How much is Gem-Knight Aquamarine worth?

Gem-Knight Aquamarine (Battles of Legend: Monster Mayhem #BLMM-EN137) is worth around $0.22 ungraded, or about $31 in PSA 10, based on live Yu-Gi-Oh! market data.

What is a PSA 10 Gem-Knight Aquamarine worth?

A PSA 10 Gem-Knight Aquamarine sells for around $31, roughly 142× the ungraded price.

Where can I buy Gem-Knight Aquamarine?

You can buy Gem-Knight Aquamarine on TCGplayer, Cardmarket and eBay — see the live listings on this page. Always compare against the blended market value first.

What rarity is Gem-Knight Aquamarine?

Gem-Knight Aquamarine is a Ultra Rare Yu-Gi-Oh! card from the Battles of Legend: Monster Mayhem set.