This classic single strand necklace features AA+ 6.5 mm black saltwater cultured akoya pearls finished with 925 sterling silver clasp and measures approximately 17.5" in length . The pearls are akoya pearls with round shape, 6 - 6.5 mm in size, black color, moderately blemished surface. The necklace was professionally hand knotted between each pearl. The quality grade of the pearls is AA+ in A - AAA+ quality grade system. item #: nk115