DaVonna 7-8mm White Freshwater Pearl Endless Necklace, 64-inch (64 Inch - 7.5-8 MM - White). This endless necklace features a single strand of white cultured freshwater pearls that you can wrap around multiple times for a variety of looks. These classic pearls are hand-knotted on silk thread for added security. Endless, claspless styling Pearls are individually knotted Pearl grade is AA White cultured freshwater pearls each measure 7.5-8 mm Necklace measures 8 mm wide x 64 inches long All carat weights and measurements are approximate and may vary slightly from the listed dimensions. Treatment code N. See Gemstone Treatments for further information. Pearl strands need to be worn for several hours before they will hang gracefully. Click here for additional buying information