A CHARMING GEM-SET, DIAMOND AND ENAMEL SWAN BROOCH

Details
A CHARMING GEM-SET, DIAMOND AND ENAMEL SWAN BROOCH
Designed as a pavé-set diamond swan, with a ruby eye and a gold beak, floating on calibré-cut sapphire water, with buff-top-cut ruby lillies and a demantoid garnet lilypad, enhanced by a blue and green guilloché enamel backdrop, within an engraved platinum frame, circa 1920
Literature
Penny Proddow and Debra Healy, "American Jewelry", Rizzoli, New York, 1987, p. 78