Various articles of personal adornment decorated with plaques of ceramic ware made by Josiah Wedgwood & Sons Ltd. Such articles (including finger rings, medallions, brooches, pendants, buckles, clasps, earrings) were often made by Josiah Wedgwood (1730-95) of jasper or black basalted earthenware, sometimes as a cameo or intaglio set in a metal mount.
Other articles which have been made of, or decorated with, Wedgwood jasper include beads, combs, chatelaines, and scent bottles. The ground of the jasper ware is of various colours, e.g. pale blue, lilac, sage-green, yellow, and black.
Josiah Wedgwood II made, c. 1812-22, some medallions of bone China that were mounted as brooches.
From: An Illustrated Dictionary of Jewelry, autor: Harold Newman, publishers: Thames and Hudson