This genuine South Sea pearl necklace features pearls with off round shape, 9.5 - 10.5 mm in size ( gradually increases from back to front), dyed black color, minor natural flaws on the surface, 17" in length. This strand comes with free 925 silver clasp, certificate of appraisal and authenticity and nice gift box. gold clasp available with extra cost. The overall quality grade of the pearls is AA+ under A - AAA+ quality grading system. item#: nk223