Pearlier vs Pearlies - What's the difference?

As an adjective pearlier

is (pearly).

(head)

(pearly)

(uncountable, uncommon, dated) A pale greyish white colour, tinted with blue.

(countable, British, especially in plural) tooth

(er)

Of a pale greyish white colour, tinted with blue.

* pearliness * pearly nautilus * pearly everlasting * Pearly Gates * pearly king * pearly penile papules * pearly queen * pearly whites