Amr bin Shu'ayb narrates from his father, from his grandfather (may Allah be pleased with him), that the Prophet (peace and blessings be upon him) "fixed the full diyah for the nose. If one nostril of the nose is affected, there is half the diyah for it, or its equivalent in gold or silver."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الديات / 16239