Luul
Luul means 'pearl' in Somali, used as an epithet of beauty and preciousness for girls.
Yes. Luul is cognate with the Arabic lu'lu' (لؤلؤ) and shares the same semantic field though it is a Somali lexical form.
The proper name Luul is not a Quranic personal name. The Quran and hadith, however, use pearls as imagery in describing Paradise and precious things.
Pronounced with a long u: 'LOOL', similar to 'Lulu' but reflecting Somali vowel length.
Luul is recognizable and used in Somali communities; it is poetic and moderately uncommon compared to more widespread names.