This is an authentic JOHN HARDY 18K Yellow Gold Sterling Silver Pink Topaz Diamond Batu Sari Ring 54 7. The ring is crafted of 18 karat yellow gold and sterling silver and features a faceted pink topaz stone framed by round-cut diamonds weighing approximately .46 total carat weight. Follow this item for alerts. John Hardy is a registered trademark of John Hardy. FASHIONPHILE is not affiliated with John Hardy.