14k Gold Over Brass. White Pearl. Lobster Clasp W/ Single Adjustable Slider Bead. 16" Chain With 2" Extender. The Willa Gold Pearl Strand Necklace in White Pearl is the pearl necklace refresh you’ve been looking for. Dainty cultured freshwater pearls shimmer along a delicate chain for a minimal choker style, AKA the ideal base for an everyday stack.