Aji Project Aji Stone OT- Coaster

AJI STONE · TAKAMATSU, KAGAWA

A Rare Japanese Granite Quarried Only in Takamatsu, Kagawa

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.

Hand-Finished by Stone Artisans in Kagawa

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.

Sculptural Stone Coasters in Three Distinct Forms

Each granite coaster gives Aji Stone a distinctly sculptural form. The collection includes three designs, each defined by its own silhouette and engraved detail. Enjoy the different expressions that the same Aji Stone reveals through each form.

Mitsude

A finely carved mesh pattern gives the stone an unexpectedly delicate, almost airy appearance. The precise engraving contrasts with the solid character of granite, creating a lighter and more intricate expression.

Mon Hyotan

A softly curved gourd-shaped silhouette gives this piece a relaxed, organic presence. Its elongated form leaves room for a cup alongside a small sweet, making it especially suited to serving as both a coaster and a small plate.

Mon Nejiri

Inspired by the shape of a Japanese family crest, Mon Nejiri is formed from three rounded lobes that meet in a subtle twisting arrangement. Its thin profile and softened edges give the stone a surprisingly light and graceful appearance.

meet the artisans

AJI PROJECT

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