Kuroi Hana Japanese Knife Collection – Edge of Belgravia

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pledged of £25,000 goal


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About this project

Kuroi Hana is the fusion of London design with premium Japanese AUS-10 steel. The dark floral pattern is unique to each blade.

What inspired us to create the Kuroi Hana range is that cooking should be more than just an everyday task; it should inspire creativity. We believe that creativity in cooking comes from a combination of supreme quality materials, artisanal craftsmanship, and aesthetic beauty.

Based on our experience in knife making we carefully selected a supreme quality Japanese steel called AUS-10. With a hardness range of 58-60 HRC, high toughness, supreme sharpness and good corrosion resistance, this steel is ideal for the highest quality Chef knives.

Our blade consists of 67 layers of premium quality Japanese steel. This multi-layered steel has its origin in both Japanese samurai and Damascene sword making.

Whilst the pattern is originally formed in the forging process, skilled artisan workers manually submerge the blade into an etching solution. This penetrates the multiple layers of steel and brings out the beautiful dark floral pattern on the blade. Each blade pattern is unique.

We worked with London designer Christian Bird, to create a contemporary and effortlessly beautiful design that ensured our knives were of the highest quality, both aesthetically and functionally.


Every KUROI HANA blade consists of 67 layers of Japanese high carbon steel from Aichi steel corporation. Each layer also contributes to a combined layered effect known as the ‘Damascus effect’. The result is this amazing dark floral pattern. This is KUROI HANA.

The steel core is of AUS10. AUS-10 is Aichi’s most well-rounded knife steel. With a hardness range of 58-60 HRC, high toughness, scary sharpness and good corrosion resistance, AUS-10 is the recommended grade for high-end chef’s knives.

This innovative high carbon steel core also contains Vanadium which improves the wear resistance, toughness, and ease of sharpening. The remaining layers are formed by alterations of S/S 430 and S/S 431 steel to create an outer case, protecting the cutting core.

The blade cutting angle is 35º (17.5 on each side for optimal sharpness).

Black Diamond Knife Block
Black Diamond Knife Block

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