Yu-Gi-Oh!
Gem-Knight Ruby
Hidden Arsenal 5 · 019sec · Secret Rare
Current UK price · near mint
£1.01▼ 15.8%
As of 2026-05-23 · folio price index · last 7 days
About this card
Gem-Knight Ruby is a Secret Rare from Hidden Arsenal 5, part of the Yu-Gi-Oh! trading card game. Track its price, watch its history, and manage your full TCG collection — across 13 games and counting — with folio. Built by collectors, for collectors.