Sterling Silver Black Tahitian Cultured Pearl Pendant Necklace Sterling silver necklace featuring a Black Tahitian Cultured Pearl Pendant 18" Sterling Silver Rope chain with "Spring-ring" Clasp The natural properties of Pearls define the unique beauty of each piece. The image may show slight differences to the actual in color and shape. Carved rings/dimples are naturally occurring imperfections that result from the pearl rotating inside the mollusk as it is growing. They may vary in size, number, and depth per pearl. Imported