Biwa - A cultured pearl originally non-nucleated, grown in a freshwater mussel from Lake Biwa in Japan. Only those actually produced there should be called Biwas; others are simply called freshwater cultured pearls.
Blister Pearl - Blister pearls are a pearly excrescence formed on the inside of the shell of a mollusk (oyster) commonly enclosing a foreign body, such as a bit of mud or parasite. Blister pearls are often irregular in shape.
Bola - (also called Bola tie or Bolo tie) A type of necktie popular in the American Southwest, created using a length of cord fastened with a clamping slide finding, and finished with metal bola tip ends. The finding is often hidden by a cabochon, carving or other large design motif.
Box Clasp - (see also Tab Insert Clasp) A clasp with a tab which is inserted into a decorative frame or box. Some styles come with safety latches or safety chains, which prevent the wedge-shaped tab from pulling out and the jewelry from dropping off. Some styles are accented with gemstones, enamel or inlay work. They are commonly used for lightweight necklaces, bracelets and anklets. Can include Bayonet Clasp, Bead Clasp and Filigree Clasp styles.
Bracelet - A form of jewelry, usually decorative, worn around the wrist created from leather, fibers, plastics or metals. Bracelets can be embellished with stone, wood, shell or other materials. Some bracelets are used for medical or identification purposes (such as allergy bracelets).
Brick Stitch - (also called Cheyenne stitch or Comanche stitch) An off-loom bead-weaving technique used by many cultures across the world. In brick stitch, beads are woven together similarly to how bricks are stacked in a brick wall.
Bridge jewelry - Bridge jewelry is generally thought of as jewelry that is the bridge between fine jewelry and costume jewelry. It may use vermeil, gold-filled or sterling silver metals and semi-precious stones such as amethyst, citrine, turquoise, jade, topaz, cultured freshwater pearls, garnet and others. Most bridge jewelry is artisan-made, but it can also be mass produced.
Brown-Plated - Brown-plated items have a polished copper core, dipped in a liquid brown compound (the recipe is a trade secret). The items are then baked to fuse the coating into the metal, slowly cooled, then polished again. Items can display a slight rainbow effect