Matiere: Paint.

Matte: Flat, nonglossy; having a dull surface appearance. Variant spelling - matt.

Marouflage: A technique for attaching, with glue, mural size painting on paper or fabric to a wall.

Medium: A material used in art, e.g. Oil in painting, pencil in drawing or bronze in sculpture. The term is also used to refer a method, e.g. Painting as opposed to sculpture.

Miniature: A painting, usually a portrait of very small dimension, generally executed in watercolours on vellum and later on porcelain.

Mixed Media: In drawing and painting this refers to the use of different media in the same picture.

Modernism: A reaction against the florid excesses of Art Nouveau, it sought to strip away unnecessary ornament and decoration in architecture and design.

Monochrome: A drawing or painting executed in one colour only.

Mural: A picture or design painted directly onto a wall, a practice that began in very early times.

Maesta: The Italian word for ‘majesty’ used in art to refer to a depiction of the virgin and child on the throne surrounded by angels and saints.

Mahistick or Maulstick: A stick used by painters to steady and support the hand while working.

Mezzotint: A method of engraving on copper or steel in imitation of drawing in Indian ink, the light areas being scraped and burnished out of a prepared dark ground.

Montage: A technique similar to collage, where the images are photographic.

Mosaic: Picture making technique using small units of variously coloured materials (glass, tile, and stone) set in a mortar.

Motif: A repeated theme, subject or figure, e.g. in a design.

A type of cut in which the stone is elongated and pointed at both ends.  A marquise stone is longer than it is wide.

A way in which diamonds are cut.  Mixed-cut diamonds combine the qualities of the brilliant and step-cuts.

The abbreviation for millimeter; our standard unit of measurement for jewelry dimensions.  For an approximate conversion to inches, see below.

3MM is approximately 1/8 inch
6MM is approximately 1/4 inch
13MM is approximately 1/2 inch
19MM is approximately 3/4 inch
25MM is approximately 1 inch
50MM is approximately 2 inches
75MM is approximately 3 inches

Mother of Pearl
Thin layers of nacre that make up the iridescent interior of a mollusk shell.  These layers are removed and used for watch faces and other pieces of jewelry.