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Gem-Knight Ruby card prices and values
There are 4 Gem-Knight Ruby cards and versions in our Yu-Gi-Oh price list. The most valuable is Gem-Knight Ruby DT05-EN034 from Duel Terminal 5 at about $13.57 ungraded, and the highest PSA 10 value is Gem-Knight Ruby from Duel Terminal 5 at about $288. Prices updated September 25, 2026.
| Card | Raw | PSA 9 | PSA 10 |
|---|---|---|---|
 Gem-Knight Ruby DT05-EN034Duel Terminal 5 · Limited | $13.57 | $65.90 | $288 |
 Gem-Knight Ruby HA05-EN019Hidden Arsenal 5: Steelswarm Invasion · 1st Edition | $2.06 | $10.34 | $26.00 |
| Gem-Knight Ruby HA05-EN019Hidden Arsenal 5: Steelswarm Invasion · Unlimited | $1.00 | $10.29 | $67.61 |
 Gem-Knight Ruby BLMM-EN136Battles of Legend: Monster Mayhem · 1st Edition | $0.23 | $6.00 | $30.92 |
Sorted by ungraded price. Raw prices: TCGplayer market price. Graded values: PriceCharting. A dash means we do not show a graded value for that card. This is a guide, not financial advice.
Questions
Gem-Knight Ruby card questions
What is the most valuable Gem-Knight Ruby card?
Gem-Knight Ruby DT05-EN034 from Duel Terminal 5 (Limited) at about $13.57 ungraded. The highest graded value is Gem-Knight Ruby from Duel Terminal 5 at about $288 as a PSA 10.
How much is a Gem-Knight Ruby card worth?
It depends on the exact card and version. Gem-Knight Ruby cards in our list run from $0.23 to $13.57 ungraded. Find your card by its number in the table, then open it for the full prices.