Declension table of saptaratna

Neuter	Singular	Dual	Plural
Nominative	saptaratnam	saptaratne	saptaratnāni
Vocative	saptaratna	saptaratne	saptaratnāni
Accusative	saptaratnam	saptaratne	saptaratnāni
Instrumental	saptaratnena	saptaratnābhyām	saptaratnaiḥ
Dative	saptaratnāya	saptaratnābhyām	saptaratnebhyaḥ
Ablative	saptaratnāt	saptaratnābhyām	saptaratnebhyaḥ
Genitive	saptaratnasya	saptaratnayoḥ	saptaratnānām
Locative	saptaratne	saptaratnayoḥ	saptaratneṣu

Compound saptaratna -

Adverb -saptaratnam -saptaratnāt