This is a Single Freshwater pearl pendant with silver chain. The White pearl in the 10.5mm size range. It has nice luster and is very white in color and clean skin. The necklace is 16 inches long with a 3 inch extension. The necklace is 1.1mm thick and is made of sterling silver 925. The necklace is stamped 925. The necklace is made of Sterling Silver 925 and has a 3 inch extension on the end so you can adjust the necklace to different lengths with different outfits.