नव (nava)—रत्न (—ratna) n. 9 precious gems (viz. pearl, ruby, topaz, diamond, emerald, lapis lazuli, coral, sapphire, and Go-medha they are supposed to be related to the 9 planets), L. (cf. Monier-Williams’ Buddhism in its connexion with Brāhmaṇism and Hindūism: and in its contrast with Christianity (Title) 528 ) [ID=104663]
— Monier-Williams Sanskrit-English Dictionary (1899)