Gem Stone King 314.00 Carat Black Simulated Onyx Chip Necklace 32 Inch 314.00 Carat Natural Black Onyx 32 Inch 100% Satisfaction Guaranteed Gemstones may have been treated to improve their appearance or durability and may require special care. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!