Declension table of ?candraratna

Neuter	Singular	Dual	Plural
Nominative	candraratnam	candraratne	candraratnāni
Vocative	candraratna	candraratne	candraratnāni
Accusative	candraratnam	candraratne	candraratnāni
Instrumental	candraratnena	candraratnābhyām	candraratnaiḥ
Dative	candraratnāya	candraratnābhyām	candraratnebhyaḥ
Ablative	candraratnāt	candraratnābhyām	candraratnebhyaḥ
Genitive	candraratnasya	candraratnayoḥ	candraratnānām
Locative	candraratne	candraratnayoḥ	candraratneṣu

Compound candraratna -

Adverb -candraratnam -candraratnāt