- tcgrate
- Games
- Yu-Gi-Oh!
- Sets
- Hidden Arsenal 7: Knight of Stars
- Gem-Knight Master Diamond
Yu-Gi-Oh! · Hidden Arsenal 7: Knight of Stars · #HA07-EN059 · Secret Rare
Gem-Knight Master Diamond
Yu-Gi-Oh! card price for Gem-Knight Master Diamond: $1.20 market, from $0.87 at the cheapest listing, 1st Edition printing, updated Oct 19, 2026. Full price history since Feb 8, 2024 below.
Sellers right now
Market price is what a near-mint copy actually sold for. The cheapest listing is what a seller asks today — on thin markets the two differ a lot.
Where to buy
One year
Price story
We have tracked Gem-Knight Master Diamond (1st Edition) since February 2024, when it sold for $1.33. Today the market price is $1.20, down 9.8%. Across the past year it went −33.7%, with a low of $1.18 and a high of $1.81; today it sits near the bottom of that range. Its all-time high in our data is $2.20, still 83.3% above the current price. The cheapest listing right now is $0.87, and the 30-day average market price is $1.21.
Printings
The card in play
- Card type
- Fusion/Effect Monster
- Attribute
- EARTH
- Monster type
- Rock
3 "Gem-Knight" monsters // Must first be Fusion Summoned. This card gains 100 ATK for each "Gem-" monster in your Graveyard. Once per turn: You can banish 1 Level 7 or lower "Gem-Knight" Fusion Monster from your Graveyard; until the End Phase, this card's name and original effect become the same as that banished monster's.
