These are the natural stones I have tested on kitchen knives. For knives you normally want something softer and faster than a razor stone — most people land between Lv 1,5 and Lv 4. The hardness is written in each stone name.
A natural stone gives you a Kasumi finish and an edge that bites into food in a way synthetics do not. Softer stones work well on single bevel knives and wide bevels, harder ones on thin double bevel knives.
If you are not sure, email me and tell me which knives you have. I will help you pick the right one.
Kasumi on hard Jnats | How to use a natural stone | Read Stone Recommendations
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Asano Koma Nagura (a3650)
DKK13,800.00Asano Koma Nagura 2640g Asano Koma Nagura is Rare in small size but this Huge bench sized stone is crazy Rare And I think it is first time I got Batch like That with Huge Koma Nagura from Asano I... -
Nakayama Asagi Maruichi Kamisori Lv 4,5 (a3633)
DKK9,775.00Super beautiful Nakayama from Maruichi Super clean and big stone ! Very rare that they come that big in Full size This one is super special as it is not often I get Nakayama Maruichi that can also be... -
Ohira Range Suita Lv 3,5 (a3620)
DKK18,400.00I rarely get them now but got a chance to get Ohira Range Suita white with some range patter Very smooth and feels super nice. Medium hardness not to soft not to hard ! perfect for tools and... -
Atagoyama Huge Lv 3,5 (a3601)
DKK13,800.00Old stock Atagoyama, Super big stone and will be crazy hard to fine Fast and Medium Hardness stone with very light color feels super smooth and creamy Very nice stone for fine Kasumi finish and also... -
Oohira Ooban Lv 3,5 (a3600)
DKK8,050.00Old stock Ohira Ooban Ooban is size of the stones and very rare for Japanese Natural stones Fast and Medium Hardness stone Very nice stone for fine Kasumi finish and also makes crazy sharp and fine... -
Oohira Ooban Lv 3,5 (a3598)
DKK9,775.00Old stock Ohira Ooban Ooban is size of the stones and very rare for Japanese Natural stones Fast and Medium Hardness stone Very nice stone for fine Kasumi finish and also makes crazy sharp and fine... -
Oohira Ooban Lv 3,5 (a3597)
DKK9,775.00Old stock Ohira Ooban Ooban is size of the stones and very rare for Japanese Natural stones Fast and Medium Hardness stone Very nice stone for fine Kasumi finish and also makes crazy sharp and fine... -
Kizuyama Ooban lv 4 (a3594)
DKK16,100.00Very Rare Kizuyama Stone with Amazing pattern parallel stripes of different colours ! Ooban is size of the stone and they are crazy rareVery smooth and very fine stone ! on Harder side You don't... -
Shinden Lv 4,5 (a3586)
DKK5,750.00Very rare That I get Shinden now a daysShinden makes some harder stones that tool users love make super fine edge Can be used for Razors and Knives, Best with Nagura for knives Shinden stones is very... -
Oohira Lv 4,5 (a3582)
DKK4,600.00Old stock Ohira Fast and harder stone Can be used for knives and even for razors Feels very smooth and make some black very fastCan be used with or without Nagura but best with Nagura for knives and... -
Oohira Lv 4,5 (a3581)
DKK4,600.00Old stock Ohira Fast and harder stone Can be used for knives and even for razors Feels very smooth and make some black very fastCan be used with or without Nagura but best with Nagura for knives and... -
Ohira Range Suita Lv 3,5 (a3565)
DKK14,950.00I rarely get them now but got a chance to get Ohira Range Suita white with some range patter Very smooth and feels super nice. Medium hardness not to soft not to hard ! perfect for tools and... -
Aiiwatani Koppa Lv 2,5 (a3561)
DKK1,840.00Aiiwatani Located north for Kyoto along with Takashima but makes finer and harder stones Very nice feel, smooth and soft very good for Kasumi finish Produce super nice finish and quite easy to... -
Kouzaki Lv 5 (a3510)
DKK1,725.00Kouzaki is very Famous for they Super hard Aotos. However this one is super fine lv 5 stone finisher for razors Amazing finisher if you want to try something new and different ! :) Super clean and... -
Kouzaki Lv 5 (a3509)
DKK1,725.00Kouzaki is very Famous for they Super hard Aotos. However this one is super fine lv 5 stone finisher for razors Amazing finisher if you want to try something new and different ! :) Super clean and... -
Nakayama Maruichi Kiita Kamisori Lv 5 (a3488)
DKK8,625.00Super beautiful Nakayama from Maruichi, Kiita with Some Asagi pattern as well Very Hard and super smooth stone ! Without any toxic Lines or inclusions at all !Final finisher for Kamisori and Razors... -
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Binsui
DKK805.00This Binsui stones is quite soft and very easy to use, create slurry very fast and make amazing toothy edge Approx. 1-2k grit approx Size: 210mm 70mm 60mmPicture is just example -
Ikarashi Flat
DKK1,265.00Medium grit stone from Niigata, Sanjo I have tested this stone for some time now and i think it is very good 1000 -2000 stone ! Very fast for natural and feels very good, it have super feedback that... -
Big Ikarashi Flat
DKK1,495.00Medium grit stone from Niigata, Sanjo I have tested this stone for some time now and i think it is very good 1000 -2000 stone ! Very fast for natural and feels very good, it have super feedback that... -
Hideriyama Lv 3 (a3305)
DKK7,475.00Hideriyama is a mine that produce more softer stones then other mines. It is very good stones for Kitchen knifes or for beginners in tool sharpening! This one is super smooth and feels a lot like...

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