Nigar
No, Nigar is not mentioned in the Quran, but its meaning of divine reflection and beauty is compatible with Islamic teachings.
Nigar is primarily Persian in origin but has been historically adopted and preserved within Kurdish and Balochi linguistic traditions as a rare literary name.
In Sufi poetry, Nigar represents the heart as a portrait or reflection of the Divine Beloved, symbolizing deep spiritual love and contemplation.
They are transliteration variants of the same Persian name; Nigar is closer to the Kurdish/Balochi pronunciation, while Negar is standard Persian.
Yes, it is appropriate as it signifies beauty and belovedness without any negative connotations, aligning with the tradition of naming with good meanings.