Luna 18K Yellow Gold Diamond Ring

The over-80-year-old Brazilian jewelry house—founded by the man who discovered Brazil’s first emerald mine—continues to reign as one of the most prominent purveyors of fine jewelry. Each collection is a model of modern excellence—steeped in Brazil’s artisanal heritage—and features the most stunning selection of locally sourced stones.

Inspired by the brand's Luna bracelet from 1992, which was also bestowed with the De Beers award. As made evident in its name, the piece's craters emulate those of the surface of the moon.