Handcrafted Sterling Silver Post Earrings with prong set Elite Shungite rough gemstone. Elite Shungite is about 98% pure organic carbon, making it the most beneficial and rarest form of Shungite. Due to its purity, Elite Shungite is believed to have a stronger effect than Black Shungite. Shungite is an ancient stone, approximately 2 billion years old, sometimes called the stone of life because of its purported extraordinary abilities. Because each rough piece is formed naturally, your earrings will be unique and appear slightly different, yet similar to the items pictured. Fine materials and craftsmanship make these unique earrings an exceptional value. Each pair features rough Elite Shungite gemstone. (Approx. .25 - .38 inches). Prong set in fine 925 Sterling Silver. Ships in an elegant Starborn Branded Gift Box.