Large Square Foundation Hoop Earrings - White GoldCadar large square foundation hoop earrings in white gold. 18K White Gold These square hoops are a sleek work of architectural beauty. Their clean edges cut a crisp silhouette, while the richness of the 18K gold gives even the most minimalist look a luxe finish. The largest of the three sizes, these modern rectangular hoops are light and feature a smooth hinge that makes them easy to take on and off. 2 x 2 x 0. 1 (in)