AN ART NOUVEAU OPAL, DIAMOND AND EMAMEL RING

細節
AN ART NOUVEAU OPAL, DIAMOND AND EMAMEL RING

Set with a cabochon opal in matrix, in a rose-cut diamond and green enamel floral openwork surround to the enamelled hoop, circa 1900 (enamel slightly damaged)

Signed by L. Gaillard, no. 5881