Baroque: A highly ornamental, flamboyant style of European art and architecture which lasted from the mid 16th century until the early 18th century.

Bistre or bistre: A worm brown pigment prepared from the soot of wood, especially from beech wood.

Brushwork: The distinctive way, in which an artist applies paint, being equivalent to the individual nature of handwriting.

Binder: The nonvolatile adhesive liquid portion of a paint that attaches pigment particles and the paint film as a whole to the support.

Bleeding: In artwork, the effect of a dark colour seeping through a lighter colour to the surface.

Blending: Smoothing the edges of two colours together so that they have a smooth gradation where they meet.

Bloom: A dull, progressively opaque, white effect caused on varnished surfaces by damp conditions.

Body Colour: Opaque paint, such as gouache, which has the covering power to obliterate underlying colour.

Baroque: Irregularly shaped pearls, which may be natural or cultured.

Biwa Pearl: Freshwater pearls sourced from Lake Biwa in Japan. Biwa pearls are usually irregular in shape and more lustrous than other freshwater pearl varieties.

Black Pearl: A pearl produced by a black-lipped oyster found in the tropical waters of the Indian and Pacific Oceans. The various colors of black pearls include grey, peacock green, purple and dark brown, and they can have additional overtones of blue, green, pink, gold or silver. The color of black pearls depends on the combination of minerals in the oyster's environment, which it injects. Also known as Tahitian pearls.

Bangle: A rigid bracelet, which can either be work by opening with a clasp and hinge, or by slipping directly over the hand.

Beveled cut: A shape of stone where the surface has been cut at an angle less than 90 degrees. Often seen in rhinestones and other gemstones. 

Bezel: This is a setting used in jewelry, in which a stone is held in place by a band (either plain or with a fancy edging, around the outside of a stone. See also Prong settings).

Baguette: A stone cut into a small rectangular or tapered shape with a step cut and often used as accents to larger stones.

Barrel Clasp: Two metal pieces on either end of a necklace or bracelet screw or click together, forming a clasp that looks like a barrel.

Bead Setting
A decorative setting in which stones are set evenly with the metal surface and secured by small metal bead-like prongs.

Bezel Setting: Metal is wrapped around the girdle of the stone, making only its crown and table visible.  This setting is admired for its protection, security and its ability to minimize inclusions.

Birthstones: Stones that correspond to a specific month of the year.

Blemish: Imperfections found on the external surface of a diamond.

Blue Topaz: The most common form of topaz.  Blue Topaz is traditionally used to celebrate December birthdays and the fourth year of marriage.

Box Chain: A classic chain with small box-like links.

Box Clasp: A piece of folded metal on one end of a chain or bracelet fits into the opening of a box on the other end and securely fastens the chain or bracelet together.

Bridal Set: A set of rings that includes both the engagement ring and wedding band for her.

Brilliance: The light that is reflected from the diamond to the eye, or the amount of sparkle for a particular diamond.

Brilliant-Cut: A way in which diamonds are cut.  Brilliant-cut diamonds include round, oval, teardrop, pear, princess, radiant, triangle, heart and marquise-shaped diamonds.