Ryūgyoku (龍玉): the dragon’s jewel
In the iconography of East Asia, the dragon is rarely depicted alone, it is almost always accompanied by a jewel, the ryūgyoku or hōju. This sacred gem embodies wisdom, prosperity and spiritual power. The dragon guards it, pursues it, or holds it clasped between its claws.
That symbolism runs through every element of this tantō: a dragon and its pearl engraved upon the blade, a golden dragon painted across the saya, and a dragon’s head carved into the habaki.
A hira-zukuri blade in T10 steel with a genuine gunome hamon
The blade is crafted from T10 steel, a high-carbon steel prized for its hardness and edge retention. It has been clay-tempered, a process that produces a clearly visible genuine gunome hamon.
The geometry follows the hira-zukuri tradition (flat-ground, without a longitudinal ridge) as is typical of tantō. Its tricolour mirror polish draws the eye to the engraved dragon and pearl on the body of the blade. No bo-hi is present. The blade is hand-sharpened, a level of artisanal finish that sets it apart from the ordinary.
A silver and gold mounting with floral ornament
The tsuba is a small round guard (maru-gata) in silver-toned alloy with a polished (migaki) ground, decorated with raised golden floral garlands (iroe) and a rounded rim (maru-mimi). A gilded brass seppa accompanies it.
The fuchi and kashira in gilded alloy are finely worked with flowers in relief. The handle combines a wooden core with white faux ray skin, wrapped in a white tsuka-ito in hineri-maki, with gilded menuki. The ichimai habaki in gilded brass is carved with a dragon’s head.
A silver saya with golden dragon
The saya is of solid wood, finished with a glittered metallic silver lacquer, upon which a golden dragon with red highlights has been painted in the maki-e manner. The rounded koiguchi and kojiri (maru) are lacquered silver in keeping with the rest of the saya. The silver-lacquered kurikata with golden shitodome holds a white cotton sageo.
Dimensions and handling
With a blade length of 33 cm and an overall length of 55 cm, Ryūgyoku is a tantō of generous proportions. Its 17 cm handle sits firmly in one hand, while the total weight of 0.7 kg keeps it light and responsive. At 57 cm in its saya, the piece presents its golden dragon to full effect on a display stand.




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