What is plique-à-jour enamel?
By Jared James · Last updated 21 May 2026
Definition
Plique-à-jour is a form of cloisonné enamelling where the cells of enamel have no metal backing, so light passes right through them, giving the finished piece the luminous quality of a tiny stained-glass window. The name is French for letting in daylight. To make it, enamel is fired within a framework of metal wires using a temporary base, usually a copper sheet, that is removed once the enamel has hardened. It is a technically demanding and fragile technique, most associated with Art Nouveau jewellery.
Frequently asked questions
- How is plique-à-jour different from cloisonné?
- In cloisonné, the enamel cells sit on a solid metal base, so the piece is opaque. In plique-à-jour the backing is removed after firing, leaving only the enamel suspended in its wire framework and allowing light to pass through it.
- Is plique-à-jour fragile?
- Yes, because the enamel has no backing it is more vulnerable than other enamel work. Antique plique-à-jour pieces should be handled carefully, kept away from hard knocks, and stored where they will not press against other jewellery.
- Which period is most associated with plique-à-jour jewellery?
- Art Nouveau, roughly the 1890s to 1910s, is the era most closely linked with this technique. Jewellers like René Lalique and the Fabergé workshops used it extensively, often imitating the delicate colours of butterfly wings and dragonflies.
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