Like cultured seawater pearls, cultured half-side pearls also need to be implanted with a bead core. The difference is that the bead nucleus of general seawater pearls is a small round bead made from shells, while the bead nucleus of half-sided pearls is half-sided, and there are (half-sided) ラウンド, 楕円形, drop-shaped, heart-shaped and other shapes […]
