This is an authentic JOHN HARDY Sterling Silver 18K Yellow Gold Amethyst Citrine 5mm Classic Chain Reversible Lava Necklace. The necklace is crafted of sterling silver and 18 karat yellow gold bonded over sterling silver, and features a flexible woven chain accented with an assortment of amethyst and citrine cabochon stones. Follow this item for alerts. John Hardy is a registered trademark of John Hardy. FASHIONPHILE is not affiliated with John Hardy.