45.00 Ct Sterling Silver Black Onyx 8mm Round & 14mm Center Stone Necklace Natural Black Onyx 925 Sterling Silver 8mm Round Stones With 14mm Center Stone 8.00 grams 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!