What makes koi saya katana different from standard katana?
Updated Mar 2026
The defining feature is the hand-painted lacquer scabbard depicting koi carp motifs — a level of decorative finish rarely seen on production swords. Standard katana scabbards are typically finished in a single matte or gloss lacquer coat without figurative artwork. Koi saya pieces go through additional artisan stages: base lacquer application, hand-painting of the koi design, and protective topcoat sealing. This process means the saya itself holds independent collectible value as a piece of decorative lacquerwork, separate from the blade. The blades in this collection are also full-tang construction, meaning the steel extends completely through the handle for structural integrity, a mark of quality that distinguishes them from decorative-only replicas with partial tangs.