Pearl and crystal necklace

here is the pattern of each unit: 1) crystal, seed bead, crystal, seed bead, crystal, seed bead. 2) seed bead, pearl, seed bead, pearl, seed bead. 3) seed bead, pearl, seed bead, crystal, seed bead, crystal, seed bead. 4) seed bead, crystal, seed bead, pearl, seed bead. 5) seed bead, crystal, seed bead, crystal, seed bead.