Pieces of glass or gems set in grout. See "Micro-Mosaic" & "Pietra Dura". An object decorated with many small adjacent pieces of inlaid varicoloured glass or stone arranged to form a picture of design. For articles of jewellery. The mosaic was usually made in the form of medallions set in brooches, pendants, and necklaces. Finger rings, earrings and parures.