Blue beaded statement necklace

gold tone chain with lobster claw closure smooth, shiny blue beads-flat on one side in gold tone setting small blue bead in center blue is lighter than a navy, almost a pretty blueberry color or indigo approx. 18" length I wore this a few times. There are some faint marks on the beads and one bead in particular (2nd row) does not appear to be straight in setting. Otherwise, good condition. Brand unknown.