Sterling Silver Graduated High Polish Bead Necklace and 8mm Round Ball Earring Set. Weight 19.5g (approximate) Necklace is 20" Long and has 4mm beads = 72 pieces, 5mm = 16 pieces, 6mm = 12 pieces, 7mm = 8 pieces, and 8mm = 3 pieces. The diameter of the round sterling silver ball in earring is 8mm approximate. bracelet and necklaces in different length also available. Product is shipped in a nice presentation box.