Art Nouveau 18K Gold Diamond Cluster Ring with Enamel

An Art Nouveau 18K gold old mine-cut diamond cluster ring with white enamel and foliate scrollwork shoulders. Circa 1900. 

Antique Collection
Center diamond: 1.60 carats, O-P color, VS1 clarity
Accent diamonds: 1.35 total carat weight, I-J color, VS1-SI1 clarity
Size: 5.25; sizable