The adjective fulgent is good for describing something that shines so brightly that it's dazzling. You might talk about the fulgent night sky you can see in the countryside, bright with stars and a brilliant moon.
The word fulgent is a fairly uncommon one, but it's a perfect way to describe a brilliant or sparkling shine. Sunrise over the ocean can be fulgent, the light reflecting brightly off the water, and a movie star's glittering diamond jewelry might also be called fulgent. You can also use the word in a figurative way, to describe someone's dazzling personality. The Latin root is fulgentem, "shining, bright."