The largest bead is about 20mm and the smallest 10.mm. Knotted between each bead and ends with a large clasp, pocket watch style stamped .925. Measures 20" long and weighs 146 grams. Heavy and wonderful, works with jeans, perfect for work attire as well as evening wear. Each bead is different with natural veins and inclusions, a few have some clarity and are natural in color while others have that soft tint.