Bijuland is a wholesale bead and craft materials supplier based in Plovdiv, Bulgaria. The Mother of Pearl, Pearls and Shells category (седеф, перли, раковини — sedef, perli, rakovini) covers natural organic bead and jewellery materials from molluscs — within the broader Natural Beads and Mother of Pearl section. Wholesale and retail purchase available, with shipping across Bulgaria and Europe.

All three materials in this category — mother of pearl, pearl, and shell — are natural organic materials produced by bivalve molluscs and share the characteristic iridescent lustre of nacre. Nacre (from the French nacre, known as седеф — sedef — in Bulgarian) is the crystalline aragonite layer secreted by molluscs to line their shells and coat irritants into pearls: its microscopic layered structure causes light to refract and reflect across multiple thin layers simultaneously, producing the characteristic shifting, iridescent sheen associated with pearl and shell jewellery. Mother of pearl (MOP / седеф — sedef) beads are cut directly from the thick inner nacre layer of mollusc shells — typically oyster, abalone, or trochus shells — producing flat, round, or shaped beads with a solid nacre surface and the full iridescent quality of the shell. Freshwater and cultured pearls (перли — perli) are pearl formations produced inside molluscs by coating an irritant with concentric nacre layers — freshwater pearls from river mussels, cultured pearls from pearl oysters stimulated by an implanted nucleus. They are used as the highest-quality pearl bead in jewellery, with a softer, more luminous surface than MOP or shell. Shell beads (раковини — rakovini) are beads made from natural marine shells — either cut from the shell material or using the whole shell or shell fragments — producing beads with the surface texture, colour, and organic variation of real sea shells.

All three materials are used in jewellery where the natural lustre, organic origin, and coastal or oceanic aesthetic of mollusc-derived materials is part of the design intention. Mother of pearl beads are used in formal and bridal jewellery — the flat, even nacre surface provides a consistent, refined lustre — and in bohemian and coastal jewellery where the iridescent shimmer of the shell surface contributes to a natural, ocean-inspired aesthetic. Freshwater pearls are the classic jewellery pearl: used in necklaces, bracelets, earrings, and hair accessories where the soft, luminous quality of natural pearl is the defining visual element — particularly in bridal and occasion jewellery. Shell beads contribute the most varied, organic character of the three — the surface colour, texture, and natural variation of sea shell material — suited to boho, beach, and coastal jewellery where the feel of the sea is part of the design. For acrylic plastic imitation pearl beads as a lighter, more affordable alternative, Bijuland stocks these in the Plastic Imitation Pearls section. Bijuland ships from Plovdiv, Bulgaria and supplies jewellery makers, craft studios, and bead resellers across Bulgaria and Europe.