Genuine Trillion-Cut Tanzanite Gemstones and White Topaz High Polished Sterling Silver Tarnish Free, Nickle Free Leverback Settings CARE GUIDELINES - Keep jewelry away from water, cosmetics and any chemical product. Clean occasionally with a microfiber cloth These attractive earrings showcase a tanzanite trillion-cut stone below a small white topaz stone. The earrings are crafted of sterling silver and secured by leverbacks.