This one of a kind statement piece is hand fabricated in sterling silver, with a beautiful silver sheen obsidian. Collar size is slightly adjustable. Handcrafted in San Francisco. In stock and ready to ship. Silver Obsidian Necklaces, Silver Obsidian Pendant Necklace, Silver Obsidian Gemstone Necklace, Silver Obsidian Necklace With Natural Stones, Modern Jewelry With Large Stone Pendant, Modern Jewelry Pendant With Large Stone, Silver Onyx Necklace With Polished Finish, Modern Jewelry With Large Pendant Stone, Modern Silver Jewelry With Large Stone