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Gem-Knight Lady Brilliant Diamond — Battles of Legend: Monster Mayhem Yu-Gi-Oh! card
Yu-Gi-Oh! · mythicLive pricing

Gem-Knight Lady Brilliant Diamond

Stable0.0%
Gem-Knight Lady Brilliant Diamond's Near Mint price is unchanged over the past 30 days.
9h ago· Updated Oct 28, 2026
Card Details
TypeMonster — Rock
Mana CostLevel 10
P/TATK 3400 / DEF 2000
RaceRock
ArchetypeGem-
AttributeEARTH
Frame Typefusion
Human Readable TypeFusion Effect Monster
Card Text3 "Gem-Knight" monsters Must first be Fusion Summoned with the above Fusion Materials. You can only Special Summon "Gem-Knight Lady Brilliant Diamond(s)" once per turn. Once per turn: You can send 1 face-up "Gem-Knight" monster you control to the Graveyard, and if you do, Special Summon 1 "Gem-Knight" Fusion Monster from your Extra Deck, ignoring its Summoning conditions.
inkwell Fair Value™?· NM
$13.80
moderate
$9.99
$19.21
Condition?
Confidencehigh
Prices as ofOct 28
Normal—
Cheapest printing$0.26
Set Price Alert

Why This Price

inkwell Estimate
Fair Value$13.80
Movement
7D Change+0.0% (+$0.00)
30D Change+0.0% (+$0.00)
Freshness
Prices as ofOct 28
Update cadenceDaily

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3 Printings
How much is Gem-Knight Lady Brilliant Diamond worth?
The current Near Mint price for Gem-Knight Lady Brilliant Diamond from Battles of Legend: Monster Mayhem (Yu-Gi-Oh!) is $13.80. The price has been stable over the past 7 days.
What set is Gem-Knight Lady Brilliant Diamond from?
Gem-Knight Lady Brilliant Diamond is from the Battles of Legend: Monster Mayhem set. It is a mythic in Yu-Gi-Oh!.
What rarity is Gem-Knight Lady Brilliant Diamond?
Gem-Knight Lady Brilliant Diamond is a mythic card from Battles of Legend: Monster Mayhem in Yu-Gi-Oh!.
How many printings of Gem-Knight Lady Brilliant Diamond exist?
Gem-Knight Lady Brilliant Diamond has 3 printings across different Yu-Gi-Oh! sets. The cheapest printing is $0.26 from Battles of Legend: Monster Mayhem.