Gem-Knight Master Diamond
- Attribute
- EARTH
- Type
- Rock
- Level
- 9
- ATK
- 2900
- DEF
- 2500
Card Text
3 "Gem-Knight" monsters Must first be Fusion Summoned. Gains 100 ATK for each "Gem-" monster in your GY. Once per turn: You can banish 1 Level 7 or lower "Gem-Knight" Fusion Monster from your GY; until the End Phase, this card's name becomes that monster's original name, also replace this effect with that monster's original effects.
Series
Printings
| Set | Code | Rarity | Released |
|---|---|---|---|
| Hidden Arsenal 7: Knight of Stars | HA07-EN059 | Secret Rare | April 25, 2013 |
| Star Pack ARC-V | SP15-EN030 | Common | June 12, 2015 |
| Star Pack ARC-V | SP15-EN030 | Shatterfoil Rare | June 12, 2015 |
| Quarter Century Stampede | RA04-EN178 | Platinum Secret Rare | April 10, 2025 |
| Quarter Century Stampede | RA04-EN178 | Quarter Century Secret Rare | April 10, 2025 |
| Battles of Legend: Monster Mayhem | BLMM-EN143 | Ultra Rare | August 28, 2025 |
| Duel Terminal 7 | DT07-EN083 | Duel Terminal Ultra Parallel Rare | — |
| Duel Terminal 7b | DT07-EN083 | Duel Terminal Ultra Parallel Rare | — |