Women's Collar Pearl Necklace Set. Bold and Graceful Acrylic Cream Pearl Necklace with Gold Ball Bead Spacers Plus Statement Collar Featuring Graduated Black Resin and Gold Acrylic Semi Circle Details. Collar Detail Measures 2.5" x 4". Neckline Pearls Measure 15 mm. Lobster Clasp Closure. Includes Matching Pearl Ball Stud Post Backing Earrings.