Twenty-two different sorts of gems (ratna) are mentioned. These are—Diamond, Sapphire, Emerald, Agate, Ruby, Blood-stone, Beryl, Amethyst, Vimalaka, Quartz, Crystal, Moon-stone, Saugandhika , Opal, Conch-shell, Azure-stone, Topaz, Brahmamaṇi, Jyotīrasa, Sasyaka , Pearl and Coral.