Blue plique--jour enamel ring in 18K white gold. Signed SA-P for Solange Azagury-Partridge, with English hallmarks.
The retail price is 5800 (approximately $7500).
Plique--jour is a difficult enameling process in which enamel is applied to an area with no backing instead of onto metal. The result is the enamel is transparent or translucent.
The retail price is $7,700.