These Sterling Silver (0.925 fine) Dangle Earrings are made from 10mm x 6mm thk. Blue Chalcedony Briolette stones mounted onto Sterling Silver Bars. The bars are attached to 4mm dia. Sterling Silver ear posts. Sterling Silver earring backs are included. approx. size - earring: 1-3/8" long overall, total weight: 3.7 grams