A smooth round pearl creates a clean, timeless stud design with a softly luminous finish. Multiple size options range from petite and understated to bold and oversized. Hypoallergenic gold-plated brass (nickel and lead-free) forms the post setting behind each pearl. The simple construction keeps the rounded shape and natural-looking sheen at the center of the design. Backing: Butterfly push back Measurements: Small pearl - 0.2 inch / 4 mm diameter, Medium pearl - 0.25 inch / 6 mm diameter, Large pearl - 0.3 inch / 7 mm diameter, Extra large pearl - 0.3 inch / 8 mm diameter, Oversized pearl - 0.35 inch / 9 mm diameter, Jumbo pearl - 0.4 inch / 10 mm diameter