Polycrystalline compacts for cutting elements, related earth-boring tools, and related methods

An earth-boring tool, comprising:

• a body;
• and
• at least one polycrystalline compact attached to the body, the at least one polycrystalline compact comprising:
• a first plurality of discrete regions of super hard material grains having a first property;
• and
• a second plurality of discrete regions of super hard material grains having a second property differing from the first property;
• wherein at least one discrete region of the first plurality of discrete regions laterally adjoins at least one discrete region of the second plurality of discrete regions to define a curved grain interface and to define a pattern repeating through a vertical cross-section of the at least one polycrystalline compact.

A method of forming a polycrystalline compact for a cutting element, the method comprising:

• forming at least one first region of super hard material grains having a first property;
• forming at least one second region of super hard material grains having a second property differing from the first property;
• forming a precursor structure comprising a curved grain interface between the at least one first region of super hard material grains and the at least one second region of super hard material grains in a pattern repeating through a vertical cross-section of the compact;
• and
• subjecting the compact to a high-pressure, high-temperature process to sinter the at least one first region of super hard material grains and the at least one second region of super hard material grains.