As nouns the difference between stones and diamonds
is that
stones is plural of lang=enCategory:English plurals while
diamonds is plural of lang=enCategory:English plurals.
As verbs the difference between stones and diamonds
is that
stones is third-person singular of stone while
diamonds is third-person singular of diamond.
As a proper noun Stones
is the Rolling Stones, a very successful British rock band formed in the 1960s, still together in the 21st century.