AgAu Jewellery has dated this piece to the 1910s.
The face of the ring is 12mm x 12mm. The ring weighs 3.2grams. The ring is a UK finger size L and is in excellent condition.

Metal: 18ct Yellow Gold Ring
Stones: 1 central aquamarine (0.50ct), 6 Diamonds (1 point) each.
Hallmarks: Stamped 18ct
Ring Size: UK Ring size L
Weight: 3.2g
Measurements: Head 12mm x 12..
Condition: Very Good Condition
AgAu Jewellery has dated this piece to the 1910s.
Agau jewellery offer an extensive range of 9ct and 18ct gold jewellery.
You can view the stock and full dealer information on the AgAu Jewellery Profile Page