This 12mm x 15mm natural color black Tahitian Cultured Pearl necklace features pearls strung on silk thread and affixed with an 18K yellow gold clasp. The allure of these pearls are their round shape, and green overtones. Black pearls have a unique luster where the pearls capture the light and deliver it back in a mysterious incandescent glow. This necklace is 18 inches long and is accompanied by an appraisal. These pearls are "A Quality", the highest grade of the A, B, C and D nomenclature assigned to grade black Tahitian south sea cultured pearls.