Simulated holo effect, for illustration only.
Gem-Knight Lady Brilliant Diamond
- Expansion
- Battles of Legend: Monster Mayhem
- Code
- BLMM-EN145
- Rarity
- Secret Rare
- Card type
- Monster · Rock/Fusion/Effect
- Attribute
- EARTH
- Level
- 10
- ATK / DEF
- 3400 / 2000
- Archetype
- Gem-
Card text
3 "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.
Other printings
Price history
Ungraded cards
Condition: Near Mint (Mint and Near Mint)
- From
- —
- Price trend
- €0.27
- Average price 30 days
- €0.21
- Average price 7 days
- €0.23
- Average price 1 day
- €0.37
Oct 2, 2026 · €0.27
The dashed line is an estimate from the markets' rolling averages; recorded history starts on Oct 1, 2026.
Show data as a table
| Date | Price | Low |
|---|---|---|
| Oct 2, 2026 | €0.27 | — |
| Oct 1, 2026 | €0.27 | — |
| Sep 24, 2026 (estimate) | €0.23 | — |
| Sep 1, 2026 (estimate) | €0.21 | — |
Graded index
Certified cards, by grader and grade — kept apart from ungraded prices.
No graded prices
There aren't enough reliable offers for this graded card on external markets.