Hypoallergenic and Nickel Free. 10mm Black Flat Lava Stones 10mm Flat Freshwater Pearls Silver Earwires Aromatherapy Earrings Handcrafted in The USA, these shimmering pearls in these handcrafted earrings reflect the last traces of daylight, exuding an elegant allure. The volcanic essence of the black lava stones adds a touch of mystery and grounding energy to these unique pieces. Finished with delicate silver earwires, these earrings embody a blend of sophistication and earthy charm that will effortlessly elevate any outfit. Wear them to feel connected to the beauty of nature wherever you go. Simply put a drop of your favorite sent of essential oil onto a lava stone and the sent will last 12-24 hours.