What is the Latin translation for beauty?

It would depend on the usage of the Word "brilliance". Here are the renderings in Latin:

fax, facis f. a torch or firebrand, especially as used in ceremonies. Also used to describe heavenly bodies, or brilliance and passion. nitor, nitoris, m. brightness, splendor, glow, elegance. splendor, splendoris, m. brightness, luster, distinction or clarity of sound.