Graduated hoops - rings that taper in width from base to tip - have a refined quality that plain round hoops lack: the changing width creates a silhouette with direction and proportion rather than uniform geometry. Rachel Zoe finishes this graduated hoop in 14K gold over sterling silver with a lustrous round freshwater pearl suspended at the base, the pearl's organic glow landing at the earring's widest point. Butterfly back closure. The pearl charm adds weight and visual landing point to the hoop form - an earring that rewards the full arc of its design from the tapered tip down to the pearl terminus.