Edwardian / early Art Deco, circa 1910
An antique platinum-topped 18K gold openwork milgrain ring is centered with a sparkling old European cut diamond (4.7 x 3 mm, approximately 0.42 ct, H-I color, SI2 clarity) flanked by two bows and lace-like designs embellished with old mine and old rose cut diamonds.
Estimated total diamond weight is about 1 carat.
The diamond top measures 20 x 20 mm (3/4 x 3/4 in.)
Ring size 8.5 (18 mm) sizable