Woodbridge Antiques has dated this piece to the 1930s.
The marks to the inside band of the ring are unclear, however, this ring has been tested 18ct gold and platinum.

A lovely ring, would make a super engagement ring or suitable for any occasion as a gift!
Condition: In lovely vintage condition. (The photographs do not capture the lovely brightness of the diamonds.)

Period: Circa 1930's.
Measurements:
Ring Size: S
Width across setting (shoulder to shoulder): 9.6 mm Depth of setting: 5.3 mm
Width of band at base: 2.2 mm Weight: 2.6 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