This look really works because the pearls are just an accent piece rather than the full focus of the look. The combination of the pearls and rhinestones layered as a bracelet creates an awesome appearance that speaks class and sophistication with a little fun and daringness. They truly complement each other.
To keep your look flawlessly casual be sure not to overdo the pearls (i.e. pearl necklace with pearl bracelets, ring and earrings together) because this will instantly make you look overdone and overdressed.