Our gemstone earrings are crafted from a premium blend of stainless steel, 18k gold-plated stainless steel, sterling silver, and gold-plated sterling silver. These materials are chosen for their durability and resistance to tarnishing with the 18k gold plating applied at high temperatures to ensure long-lasting wear and enduring shine. Designed to be waterproof, sweat-proof, and life-proof, our earrings won't leave unsightly green marks on your skin.