Black Onyx and White Freshwater Cultured Pearl Endless Strand Necklace, 36" The contemporary edge of black onyx comes together with the sophisticated polish of white pearls in this endless necklace, whose 36 inches in length can be worn in a long, single strand or looped and layered. 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 process of pearl formation define the unique beauty of each pearl. The image may show slight differences in texture, color, size and shape. Carved rings are naturally occurring imperfections that result from the pearl rotating inside the mollusk as it is growing. They define the unique beauty of each pearl and may vary in size, number and depth per pearl. Domestic