Zeta Phi Beta Sorority Paraphernalia Women's Pearl Necklace Set. 4 Strand Graduated Layers Blue and White Acrylic Pearl Necklace Set Featuring Jumbo Blue Bubblegum Pearls. Layers Measure 20" to 30". Pearls Measure 6mm to 29mm. Silver Metal Lobster Clasp Closure. Includes Matching Pearl Ball Stud Post Backing Earrings.