The pearl halo stud earring solves a design challenge elegantly: it keeps the organic warmth and softness of the pearl at center while the cubic zirconia accent that adds brightness and definition to the pearl's more diffuse. At 8.5 millimeters, the freshwater pearl is substantial enough to be clearly the focal point; the 1.08 carats of cubic zirconia in the halo amplify its presence without competing with it. The 18K yellow gold over sterling silver setting provides warmth to both the pearl and the cubic zirconia surround. A push-back closure. This is the pearl stud earring that works for the customer who wants more visual complexity than a plain solitaire pearl stud provides.