4mm Potato Pearl Strand

4mm Potato Pearl Strand. This 16-inch strand of AAAA-grade freshwater pearls measures an average of 5mm on silk thread, graded by a GIA-certified Pearl Grader. Chinese freshwater pearls are non-nucleated, meaning they are virtually solid nacre. All of our pearls have been hand-selected and graded by a professional pearl grader who holds the GIA Pearl Grading Certification.  Unless otherwise specified, all strands are 16 inches long and come on their original silk string without knots except to secure the ends. We guarantee the authenticity and quality of all of our pearl stands.