Declension table of ?amararatna

Neuter	Singular	Dual	Plural
Nominative	amararatnam	amararatne	amararatnāni
Vocative	amararatna	amararatne	amararatnāni
Accusative	amararatnam	amararatne	amararatnāni
Instrumental	amararatnena	amararatnābhyām	amararatnaiḥ
Dative	amararatnāya	amararatnābhyām	amararatnebhyaḥ
Ablative	amararatnāt	amararatnābhyām	amararatnebhyaḥ
Genitive	amararatnasya	amararatnayoḥ	amararatnānām
Locative	amararatne	amararatnayoḥ	amararatneṣu

Compound amararatna -

Adverb -amararatnam -amararatnāt