Aji Stone SS-Coaster

AJI STONE · TAKAMATSU, KAGAWA

What is Aji Stone?
Aji Stone is a rare and highly esteemed granite found exclusively in the northeastern region of Takamatsu City, Kagawa Prefecture, Japan. Known for its exceptional density and refined grain, this stone is prized for both its durability and natural beauty.

With a Mohs hardness rating of 7 — comparable to quartz — Aji Stone surpasses most decorative stones in strength (for comparison, marble ranks at 4). Its tightly bonded fine particles enable precise and delicate craftsmanship. Moreover, its low moisture absorption makes it highly resistant to weathering, ensuring long-lasting quality.

Handcrafted by Japanese Artisans
Due to the stone's remarkable hardness and density, working with Aji Stone requires a high level of expertise. In its place of origin, specialized artisans handle each stage of the process — from quarrying and cutting to polishing, engraving, and shaping. Their generational craftsmanship brings out the full character of the stone, transforming it into a piece of functional art.

Multiple Uses in Any Room
A flat, square coaster. It can be used to place glasses or cups on it, as well as for holding dry snacks, small items, or as a planter plate. The lines on the surface are engraved using a letter carving technique.

meet the artisans

AJI PROJECT

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