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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Products List
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Umajiyama Lv 2,5 (a3733)
HKD6,086.32Umaji Yama located near Ohira mine So produced similar stones as Ohira just bit softerNo toxic lines or inclusions at allAmazing for knives and tools Beautiful clean stone -
Umajiyama Kiita Lv 3 (a3732)
HKD8,115.09Umaji Yama located near Ohira mine So produced similar stones as Ohira just bit softer, This one however is quite fine and medium Hardness No toxic lines or inclusions at allAmazing for knives and... -
Umajiyama Akapin Lv 2,5 (a3731)
HKD7,438.83Umaji Yama located near Ohira mine So produced similar stones as Ohira just bit softerNo toxic lines or inclusions at allAmazing for knives and tools Beautiful clean stone Collector Grade -
Umajiyama Tenjyou Suita Lv 2,5 (a3730)
HKD7,438.83Umaji Yama located near Ohira mine So produced similar stones as Ohira just bit softerNo toxic lines or inclusions at allAmazing for knives and tools Beautiful clean stone Collector Grade -
Yaginoshima Asagi lv 4 (a3729)
HKD3,381.29Yaginoshima Asagi Quite easy stone to use and gives amazing edge Can be used without Nagura but with Nagura will be much easier for the Kasumi finish Very fine stone and can be used for Razors as... -
Yaginoshima Asagi lv 4 (a3728)
HKD3,381.29Yaginoshima Asagi Quite easy stone to use and gives amazing edge Can be used without Nagura but with Nagura will be much easier for the Kasumi finish Very fine stone and can be used for Razors as... -
Yaginoshima Asagi lv 4 (a3727)
HKD3,381.29Yaginoshima Asagi Quite easy stone to use and gives amazing edge Can be used without Nagura but with Nagura will be much easier for the Kasumi finish Very fine stone and can be used for Razors as... -
Yaginoshima Asagi lv 4 (a3726)
HKD3,381.29Yaginoshima Asagi Quite easy stone to use and gives amazing edge Can be used without Nagura but with Nagura will be much easier for the Kasumi finish Very fine stone and can be used for Razors as... -
Oohira Lv 3,5 (a3715)
HKD4,328.05Old stock Ohira Fast and medium hardness stone quite easy to use feels very smooth and make some black very fastCan be used with or without Nagura and make clearer Kasumi finish No Toxic lines or... -
Oohira Lv 3 (a3713)
HKD4,328.05Old stock Ohira Fast and medium hardness stone quite easy to use feels very smooth and make some black very fastCan be used with or without Nagura and make clearer Kasumi finish No Toxic lines or... -
Aiiwatani Kiita Koppa Lv 2,5 (a3703)
HKD1,758.27[never coming back] Aiiwatani 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... -
Oohira Lv 3 (a3691)
HKD4,057.55[never coming back] Old stock Ohira Fast and medium hardness stone quite easy to use feels very smooth and make some black very fastCan be used with or without Nagura and make clear Kasumi finish No... -
Oohira Lv 3 (a3690)
HKD4,328.05[never coming back] Old stock Ohira Fast and medium hardness stone quite easy to use feels very smooth and make some black very fastCan be used with or without Nagura and make clear Kasumi finish No... -
Oohira Lv 3 (a3688)
HKD4,057.55[never coming back] Old stock Ohira Fast and medium hardness stone quite easy to use feels very smooth and make some black very fastCan be used with or without Nagura and make clear Kasumi finish No... -
Shoubudani Kiita Lv 3 (a3685)
HKD5,410.06[never coming back] Shoubudani is mine super close to Nakayama and produced similar stones as Nakayama usually super fine and hardSometimes in Japan shoubudani stones have been sold as... -
Shoubudani Akapin Lv 2,5 (a3683)
HKD6,492.07[never coming back] Shoubudani is mine super close to Nakayama and produced similar stones as Nakayama usually super fine and hardSometimes in Japan shoubudani stones have been sold as... -
Aiiwatani Kiita Koppa Lv 2,5 (a3681)
HKD1,217.26[never coming back] Aiiwatani 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... -
Aiiwatani Kiita Koppa Lv 2,5 (a3680)
HKD946.76[never coming back] Aiiwatani 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... -
Aiiwatani Kiita Koppa Lv 2,5 (a3677)
HKD946.76[never coming back] Aiiwatani 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... -
Mizukihara Uchigumori Lv 3 (a3666)
HKD14,877.67Famous Uchigomori from Mizukihara just on the other side of Ohira mine and comes from same mountain With Lots of Range pattern and very light gray color Crazy good to use for Kasumi finish and...

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