This Art Deco 18 karat white gold diamond eternity band is a classic from the 1920's-1930's. It has 42 bright and sparkling single-cut channel-set diamonds measuring 1.3 mm to 1.5 mm.
The ring is not marked, but tested as 18 karat gold. There is slight wear to the band and two diamonds have nicks, but it is in overall good condition.
The ring is 2.25 mm wide and weighs 2.0 grams. It is 5 3/4 US.