Lemma لُؤْلُؤ has 4 unique word forms and appears 6 times in the Quran.

Word Translation Occurrences
وَلُؤۡلُؤٗاۖ and pearl, and pearls 4
ٱللُّؤۡلُؤُ the pearl 2
ٱللُّؤۡلُوِٕ pearls 2
لُؤۡلُؤٞ pearls 2
لُؤۡلُؤٗا (to be) pearls 2