The Stonecutter monks have become one with the earth. The more skilled they get in their craft the more connected they become with the earth, and the more they know how to use the earth against their foes. Stonecutter monks are very rare as they usually are deep within a valley or high up in the mountains, and the monks themselves are not very accepting of outsiders unless it is seen that at least one of them has potential masonry talent. The home of a Stonecutter monastery is always surrounded by magnificent statues carved out of their surroundings, and they always honor their dead by making a statue of the deceased person. 

Earthen Strike

When you chose the monastic tradition at 3rd level, as a bonus action you can spend 2 ki points to turn your fists into solid stone for one minute, while they are like this whenever you do an unarmed attack with your fists you can add your proficiency bonus to your attack damage.

Earthen Self

When you chose this monastic tradition at 3rd level, You know Terran as a language and whenever you make a climbing related skill check you can double your proficiency bonus and add that to your roll.

One With the Earth

Starting at 6th level, while you are on solid ground, or underneath the surface you no longer have the need to breathe for being connected to the earth sustains you. This feature does not work if you are flying or swimming. Additionally you have gained the ability to tunnel through the earth, you gain a burrowing speed equal to your regular movement speed, and if you end your turn inside the earth nothing happens.

Earthen Body

Beginning at 11th level, as a bonus action you can spend 4 ki points to turn your skin into solid stone for one minute. While like this you gain resistance to bludgeoning, piercing, and slashing damage from nonmagical weapons

Earthen Being

Beginning at 17th level, as a bonus action you can spend 6 ki points to become an earth elemental for a number of hours equal to your monk level. Once you do this all of your ability scores remain the same, and your earth elemental form has the average number of hit points for an earth elemental. If you drop to 0 hit points while a earth elemental you revert back to your regular self with the same hit points you had before becoming an earth elemental, and any remaining damage carries over to you. You can only use this feature once every dawn.