Pigeon Throat Opaline Salt Bottle, Gold And Diamond Mount

Bottle of salts.
It is made of hydrangea pink opal crystal, also called pigeon throat.
It is cut on both sides with almond-shaped ribs of decreasing sizes.
The base is flat.
It has a pretty 18-carat gold stopper, eagle's head hallmark.
The latter is decorated with spikes on the neck and the melon-shaped top is interspersed with rope motifs and set with a rose-cut diamond.
Height: 7.2 cm
Width: 4.4 cm
French work from the Restauration period