This is an authentic JOHN HARDY Sterling Silver Diamond 12mm Curved Chain Stud Earrings. The earrings are crafted of sterling silver and feature 18 karat yellow gold earring posts, a square classic chain motif, and pave-set diamonds weighing approximately .35 total carat weight . Follow this item for alerts. John Hardy is a registered trademark of John Hardy. FASHIONPHILE is not affiliated with John Hardy.