Woodbridge Antiques has dated this piece to the Edwardian era.
The ring is marked 18ct to the inside of the shank.

Lovely ring, would be perfect for an engagement or for any occasion!
Condition: In great antique condition.
Measurements:
Ring size K 1/2
Depth of setting: 7 mm Width of setting shoulder to shoulder: 1.6 cm
Width of shank at base: 1.9 mm
Weight: 2.5 grams
Weights and measurements are approximate.
Woodbridge Antiques has dated this piece to the Edwardian era.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page