A type of enamel work on copper in the style of champlevé enamel, found on much ware made at Limoges, France, in the late 12th and the 13th centuries, but frequently used on jewelry. The metal in the cells was first covered with a dark enamel, and then the design was built up with translucent enamels (usually lapis-lazuli blue or sea-green) with the dark showing through as the background, and the unenamelled metal areas generally being gilded.
Painted enamel that was executed at Limoges and elsewhere during the 15th century and that has continued to be produced there today. Leading exponents of such work were Nardon Pénicaud and Léonard Limousin.
From: An Illustrated Dictionary of Jewelry, autor: Harold Newman, publishers: Thames and Hudson