Open circle silver earrings, Oxidized black round circle post earrings, geometric jewelry, everyday earrings, gifts under 20 This pair of open circle post earrings are easy to wear everyday and can match any outfit. A geometric and minimalist design you will love everyday! These are hand formed from sterling silver wire and oxidized with patina. You can choose the diameter of the circle is either 15 mm (0.6''), 20 mm (0,8'') or 43 mm (1,7'') . You can also choose to have them either black oxidiz