A heart-shaped cultured pearl necklace. Key product characteristics: Pearl type: The shape, characteristic deep luster (lustre), and even bead placement indicate that these are saltwater pearls (most likely classic Japanese Akoya pearls). The pearls have a delicate creamy-white hue with soft pinkish or golden overtones. Clasp: The main decorative element is a vintage, openwork silver clasp shaped like a flower or spiral pattern, with a centered accent pearl. Assembly: The beads are strung on a thread using a knot. This professional assembly method protects the pearls from friction and prevents them from scattering if the thread breaks.