Secret Rare

Gem-Knight Lady Brilliant Diamond Battles of Legend: Monster Mayhem #BLMM-EN145

Card #BLMM-EN145

Market value · ungraded

$0.26

▲ 18.2% · 30d

PSA 10

$32

122× raw

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

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Gem-Knight Lady Brilliant Diamond is a Secret Rare Yu-Gi-Oh! card from Battles of Legend: Monster Mayhem (#BLMM-EN145). Its current blended market value is $0.26 ungraded, with a PSA 10 worth around $32. Prices update from real market data.

Graded prices

Ungraded (raw)$0.26

PSA graded price estimates by grade
Grade	Relative value	Price
PSA 10		$32$32–$32
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-EN145
Rarity: Secret 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 Lady Brilliant Diamond worth?

Gem-Knight Lady Brilliant Diamond (Battles of Legend: Monster Mayhem #BLMM-EN145) is worth around $0.26 ungraded, or about $32 in PSA 10, based on live Yu-Gi-Oh! market data.

What is a PSA 10 Gem-Knight Lady Brilliant Diamond worth?

A PSA 10 Gem-Knight Lady Brilliant Diamond sells for around $32, roughly 122× the ungraded price.

Where can I buy Gem-Knight Lady Brilliant Diamond?

You can buy Gem-Knight Lady Brilliant Diamond 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 Lady Brilliant Diamond?

Gem-Knight Lady Brilliant Diamond is a Secret Rare Yu-Gi-Oh! card from the Battles of Legend: Monster Mayhem set.