Zeta Phi Beta Sorority Paraphernalia Women's Pearl Necklace Set. Timeless Silhouette Glossy Graduated Alternating Blue and White Acrylic Pearl Necklace. Single Strand Chunky Design. Pearls Measure 18mm to 24mm. Silver Metal Lobster Clasp Closure. Includes Matching Pearl Stud Post Backing Earrings.