Stunning 18" length 15.9mm baroque white South Sea pearl necklace, knotted in white silk thread and held by an elegant 14kt white gold diamond clasp. The large pearls graduate from 12.5mm near the claps to very large 15.9mm center pearl. The pure white South Sea pearls have high luster, thick nacre and clean overall surface with very, very minimal natural markings (basically almost none).Very good quality strand! Gorgeous and one of a kind!