Woodbridge Antiques has dated this piece to the 1930s.
Small diamonds encircle the full band in a uniform pattern. The ring is not hallmarked but has been tested as 18 carat white gold.

A lovely vintage diamond ring with plenty of sparkle; very appealing for lovers of Art Deco period jewellery.
Period: c.1930's
Condition: In great condition.
 
Measurements: Ring size M Width of band: 2.5 mm Depth of band: 1.2mm Weight: 3.36 grams
Weights and measurements are approximate.
Woodbridge Antiques has dated this piece to the 1930s.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page