14k Yellow Gold 8-8.5mm Dyed Black Freshwater Cultured Pearl Necklace, 18" Gemstone treatments are stable. The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture