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  6. Gem-Knight Topaz

Yu-Gi-Oh! · Battles of Legend: Monster Mayhem · #BLMM-EN138 · Ultra Rare

Gem-Knight Topaz

Yu-Gi-Oh! card price for Gem-Knight Topaz: $0.16 market, from $0.01 at the cheapest listing, 1st Edition printing, updated Oct 19, 2026. Full price history since Jun 12, 2025 below.

Market price · 1st Edition · Oct 19, 2026
$0.16
−5.9% this week · −5.9% in 30 days
Buy on eBay →
1 day0.0%
7 days−5.9%
30 days−5.9%
90 days−33.3%
1 year+33.3%
All time−36.0%

Sellers right now

$0.01lowest listing$19.77highest
Market price$0.16
Mid listing$0.25
Direct$0.10
30-day avg$0.18

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

TCGplayer$0.16

One year

$0.0852-week low$0.2952-week high
In the range38%
All-time low$0.08
All-time high$0.29
First priceJun 12, 2025
1st Edition · market price
$0.14$0.20$0.25$0.30
$0.16
Jul 21Aug 20Sep 19Oct 19
TCGplayer market price · via tcgcsvtcgrate.com

Price story

Gem-Knight Topaz came out in June 2025; we leave the first weeks out of this story, because early prices are set before real supply exists. In the last year the price changed +33.3% and ranged from $0.08 to $0.29, and it now trades in the middle of that range. Listings currently start at $0.01; over the last 30 days the market price averaged $0.18.

Printings

PrintingMarketLowHigh7d
1st Edition$0.16$0.01$19.77−5.9%

The card in play

ATK1800
DEF1800
Card type
Fusion/Effect Monster
Attribute
EARTH
Monster type
Thunder
Card text

"Gem-Knight Tourmaline" + 1 "Gem-Knight" monster
Must first be Fusion Summoned with the above Fusion Material Monsters. This card can attack twice during each Battle Phase. When this card destroys a monster by battle and sends it to the Graveyard: Inflict damage to your opponent equal to the ATK of the destroyed monster in the Graveyard.

Other printings of Gem-Knight Topaz

2 more · $0.16 – $5.34
All printings
Gem-Knight Topaz (DT05-EN036), Duel Terminal 5 — Yu-Gi-Oh! card price 0.0% 7d Gem-Knight Topaz Duel Terminal 5 · #DT05-EN036 $5.34 Gem-Knight Topaz (HA05-EN021), Hidden Arsenal 5: Steelswarm Invasion — Yu-Gi-Oh! card price 0.0% 7d Gem-Knight Topaz Hidden Arsenal 5: Steelswarm Invasion · #HA05-EN021 $1.05

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